History of Puerto Rico
The History of Puerto Rico began with the settlement of the archipelago of Puerto Rico by the Ortoiroid people between 3000 and 2000 BC. Other tribes, such as the Saladoid and Arawak Indians, populated the island between 430 BC and 1000 AD. At the time of Christopher Columbus's arrival in the New World in 1492, the dominant indigenous culture was that of the Taínos. The Taíno peoples numbers went dangerously low during the latter half of the 16th century because of exploitation by Spanish settlers, the war they waged on the Taíno, and diseases introduced by the invaders.
Located in the northeastern Caribbean, Puerto Rico formed a key part of the Spanish Empire from the early years of the exploration, conquest and colonization of the New World. The island was a major military post during many wars between Spain and other European powers for control of the region in the 16th, 17th and 18th centuries. The smallest of the Greater Antilles, Puerto Rico was a stepping-stone in the passage from Europe to Cuba, Mexico, Central America, and the northern territories of South America. Throughout most of the 19th century until the conclusion of the Spanish–American War, Puerto Rico and Cuba were the last two Spanish colonies in the New World; they served as Spain's final outposts in a strategy to regain control of the American continents. These two possessions, however, had been demanding more autonomy and had pro-independence movements since the start of the movements in 1808. Realizing that it was in danger of losing its two remaining Caribbean territories, the Spanish Crown revived the Royal Decree of Graces of 1815. The decree was printed in Spanish, English and French in order to attract Europeans, with the hope that the independence movements would lose their popularity and strength with the arrival of new settlers. Free land was offered to those who wanted to populate the islands on the condition that they swear their loyalty to the Spanish Crown and allegiance to the Roman Catholic Church.
In 1898, during the Spanish–American war, Puerto Rico was invaded and subsequently became a possession of the United States. The first years of the 20th century was marked by the struggle to obtain greater democratic rights from the United States. The Foraker Act of 1900, which established a civil government, and the Jones Act of 1917, which made Puerto Ricans U.S. citizens, paved the way for the drafting of Puerto Rico's Constitution and the establishment of democratic elections in 1952. However, the political status of Puerto Rico, a Commonwealth controlled by the United States, remains an anomaly.
Pre-colonial Puerto Rico 
The settlement of Puerto Rico began with the establishment of the Ortoiroid culture from the Orinoco region in South America. Some scholars suggest that their settlement dates back 4000 years. An archeological dig at the island of Vieques in 1990 found the remains of what is believed to be an Ortoiroid man (named Puerto Ferro man) which was dated to around 2000 BC. The Ortoiroid were displaced by the Saladoid, a culture from the same region that arrived on the island between 430 and 250 BC.
Between the seventh and 11th centuries, the Arawak are thought to have settled the island. During this time the Taíno culture developed, and by approximately 1000 AD, it had become dominant. Taíno culture has been traced to the village of Saladero at the basin of the Orinoco River in Venezuela; the Taíno migrated to Puerto Rico by crossing the Lesser Antilles.
At the time of Columbus' arrival, an estimated 30 to 60 thousand Taíno Amerindians, led by the cacique (chief) Agüeybaná, inhabited the island. They called it Boriken, "the great land of the valiant and noble Lord". The natives lived in small villages led by a cacique and subsisted on hunting, fishing and gathering of indigenous cassava root and fruit. When the Spaniards arrived in 1493, the Taíno were already in conflict with the raiding Carib, who were moving up the Antilles chain. The Taíno domination of the island was nearing its end, and the Spanish arrival marked the beginning of their extinction. Their culture, however, remains part of that of contemporary Puerto Rico. Musical instruments such as maracas and güiro, the hammock, and words such as Mayagüez, Arecibo, iguana, and huracán (hurricane) are examples of the legacy left by the Taíno.
Spanish rule (1493–1898) 
Beginning of colonization 
On September 25, 1493, Christopher Columbus set sail on his second voyage with 17 ships and 1,200–1,500 men from Cádiz. On November 19, 1493 he landed on the island, naming it San Juan Bautista in honor of Saint John the Baptist. The first settlement, Caparra, was founded on August 8, 1508 by Juan Ponce de León, a lieutenant under Columbus, who was greeted by the Taino Cacique Agüeybaná and who later became the first governor of the island. Ponce de Leon was actively involved in the Higuey massacre in Puerto Rico. In 1508, Ponce de Leon was chosen by the Spanish Crown to lead the conquest and exploitation of the Tainos Indians for gold mining operations. The following year, the settlement was abandoned in favor of a nearby islet on the coast, named Puerto Rico (Rich Port), which had a suitable harbor. In 1511, a second settlement, San Germán was established in the southwestern part of the island. According to the "500TH Florida Discovery Council Round Table", on March 3, 1513, Juan Ponce de León, organized and commenced an expedition (with a Crew of 200-including Women and Free Blacks) departing from "Punta Aguada" Puerto Rico. Puerto Rico was the historic 1st gateway to the discovery of Florida which opened the doors to the advanced settlement of the USA. They introduced Christianity, Cattle, Horses, Sheep, the Spanish language and more to the land (Florida) that later became the United States of America, 107 years before the Pilgrims landed. During the 1520s, the island took the name of Puerto Rico while the port became San Juan.
The Spanish setlers established the first repartimiento system, under which natives were distributed to Spanish officials to be used as slave labor. On December 27, 1512, under pressure from the Roman Catholic Church, Ferdinand II of Aragon issued the Burgos' Laws, which modified the repartimiento into a system called encomiendas, aimed at ending the exploitation. The laws prohibited the use of any form of punishment toward the indigenous people, regulated their work hours, pay, hygiene, and care, and ordered them to be catechized. In 1511, the Taínos revolted against the Spanish; cacique Urayoán, as planned by Agüeybaná II, ordered his warriors to drown the Spanish soldier Diego Salcedo to determine whether the Spaniards were immortal. After drowning Salcedo, they kept watch over his body for three days to confirm his death. The revolt was easily crushed by Ponce de León and within a few decades much of the native population had been decimated by disease, violence, and a high occurrence of suicide.
The Roman Catholic Church, realizing the opportunity to expand its influence, also participated in colonizing the island. On August 8, 1511, Pope Julius II established three dioceses in the New World, one in Puerto Rico and two on the island of Hispaniola under the archbishop of Seville. The Canon of Salamanca, Alonso Manso, was appointed bishop of the Puerto Rican diocese. On September 26, 1512, before his arrival on the island, the first school of advanced studies was established by the bishop. Taking possession in 1513, he became the first bishop to arrive in the Americas. Puerto Rico would also become the first ecclesiastical headquarters in the New World during the reign of Pope Leo X and the general headquarters of the Spanish Inquisition in the New World.
As part of the colonization process, African slaves were brought to the island in 1513. Following the decline of the Taíno population, more slaves were brought to Puerto Rico; however, the number of slaves on the island paled in comparison to those in neighboring islands. Also, early in the colonization of Puerto Rico, attempts were made to wrest control of Puerto Rico from Spain. The Caribs, a raiding tribe of the Caribbean, attacked Spanish settlements along the banks of the Daguao and Macao rivers in 1514 and again in 1521 but each time they were easily repelled by the superior Spanish firepower. However, these would not be the last attempts at control of Puerto Rico. The European powers quickly realized the potential of the newly discovered lands and attempted to gain control of them.
The first school in Puerto Rico and the first school in the United States after Puerto Rico became a US territory, was the Escuela de Gramatica (Grammar School). The school was established by Bishop Alonso Manso in 1513, in the area where the Cathedral of San Juan was to be constructed. The school was free of charge and the courses taught were Latin language, literature, history, science, art, philosophy and theology.
European threats 
Sparked by the possibility of immense wealth, many European powers made attempts to wrest control of the Americas from Spain in the 16th, 17th and 18th centuries. Success in invasion varied, and ultimately all Spanish opponents failed to maintain permanent control of the island. In 1528, the French, recognizing the strategic value of Puerto Rico, sacked and burned the southwestern town of San Germán. They also destroyed many of the island's first settlements, including Guánica, Sotomayor, Daguao and Loíza before the local militia forced them to retreat. The only settlement that remained was the capital, San Juan. French corsairs would again sack San Germán in 1538 and 1554.
Spain, determined to defend its possession, began the fortification of the inlet of San Juan in the early 16th century. In 1532, construction of the first fortifications began with La Fortaleza (the Fortress) near the entrance to San Juan bay. Seven years later the construction of massive defenses around San Juan began, including Fort San Felipe del Morro astride the entrance to San Juan bay. Later, Fort San Cristóbal and Fort San Jerónimo—built with a financial subsidy from the Mexican mines—garrisoned troops and defended against land attacks. In 1587, engineers Juan de Tejada and Juan Bautista Antonelli redesigned Fort San Felipe del Morro; these changes endure. Politically, Puerto Rico was reorganized in 1580 into a captaincy general to provide for more autonomy and quick administrative responses to military threats.
On November 22, 1595, English privateer Sir Francis Drake—with 27 vessels and 2,500 troops—sailed into San Juan Bay intending to loot the city. Even though San Juan was set ablaze, they were unable to defeat the forces entrenched in the forts. Knowing Drake had failed to overcome the city's defenses by sea, on June 15, 1598, the Royal Navy, led by George Clifford, 3rd Earl of Cumberland, landed troops from 21 ships to the east in Santurce. Clifford and his men met Spanish resistance while attempting to cross the San Antonio bridge (from an area known today as Condado) into the islet of San Juan. Nonetheless, the British conquered the island and held it for several months. They were forced to abandon the island owing to an outbreak of dysentery among the troops. The following year Spain sent soldiers, cannons, and a new governor, Alonso de Mercado, to rebuild the city of San Juan.
The 17th and 18th centuries saw more attacks on the island. On September 25, 1625, the Dutch, under the leadership of Boudewijn Hendrick (Balduino Enrico), attacked San Juan, besieging Fort San Felipe del Morro and La Fortaleza. Residents fled the city but the Spanish, led by Governor Juan de Haro, were able to repel the Dutch troops from Fort San Felipe del Morro. In their retreat the Dutch set the city ablaze. The fortification of San Juan continued; in 1634, Philip IV of Spain fortified Fort San Cristóbal, along with six fortresses linked by a line of sandstone walls surrounding the city. In 1702, the English assaulted the town of Arecibo, located on the north coast, west of San Juan, with no success. In 1797, the French and Spanish declared war on the United Kingdom. The British attempted again to conquer the island, attacking San Juan with an invasion force of 7,000 troops and an armada consisting of 64 warships under the command of General Ralph Abercromby. Captain General Don Ramón de Castro and his army successfully resisted the attack.
Amidst the constant attacks, the first threads of Puerto Rican society emerged. A 1765 census conducted by Lt. General Alejandro O'Reilly showed a total population of 44,883, of which 5,037 (11.2%) were slaves, a low percentage compared to the other Spanish colonies in the Caribbean. In 1786 the first comprehensive history of Puerto Rico—Historia Geográfica, Civil y Política de Puerto Rico by Fray Iñigo Abbad y Lasierra—was published in Madrid, documenting the history of Puerto Rico from the time of Columbus' landing in 1493 until 1783. The book also presents a first hand account of Puerto Rican identity, including music, clothing, personality and nationality.
In 1779, Puerto Ricans fought in the American Revolutionary War under the command of Bernardo de Gálvez, who was named Field Marshal of the Spanish colonial army in North America. Puerto Ricans participated the capture of Pensacola, the capital of the British colony of West Florida and the cities of Baton Rouge, St. Louis and Mobile. The Puerto Rican troops, commanded by Brigadier General Ramón de Castro, helped defeat the British and Indian army of 2,500 soldiers and British warships in Pensacola.
Early 19th century 
The 19th century brought many changes to Puerto Rico, both political and social. In 1809, the Spanish government, in opposition to Napoleon, was convened in Cádiz in southern Spain. While still swearing allegiance to the king, the Supreme Central Junta invited voting representatives from the colonies. Ramón Power y Giralt was nominated as the local delegate to the Cádiz Cortes. The Ley Power ("the Power Act") soon followed, which designated five ports for free commerce—Fajardo, Mayagüez, Aguadilla, Cabo Rojo and Ponce—and established economic reforms with the goal of developing a more efficient economy. In 1812, the Cádiz Constitution was adopted, dividing Spain and its territories into provinces, each with a local corporation or council to promote its prosperity and defend its interests; this granted Puerto Ricans conditional citizenship.
On August 10, 1815, the Royal Decree of Grace was issued, allowing foreigners to enter Puerto Rico (including French refugees from Hispaniola), and opening the port to trade with nations other than Spain. This was the beginning of agriculture-based economic growth, with sugar, tobacco and coffee being the main products. The Decree also gave free land to anyone who swore their loyalty to the Spanish Crown and their allegiance to the Roman Catholic Church. Thousands of families from all regions of Spain (particularly Asturias, Catalonia, Majorca and Galicia), Germany, Corsica, Ireland, France, Portugal, the Canary Islands and other locations, escaping from harsh economic times in Europe and lured by the offer of free land, soon immigrated to Puerto Rico. However, these small gains in autonomy and rights were short lived. After the fall of Napoleon, absolute power returned to Spain, which revoked the Cádiz Constitution and reinstated Puerto Rico to its former condition as a colony, subject to the unrestricted power of the Spanish monarch.
The integration of immigrants into Puerto Rican culture and other events changed Puerto Rican society. On June 25, 1835, Queen María Cristina abolished the slave trade to Spanish colonies. In 1851, Governor Juan de la Pezuela Cevallos founded the Royal Academy of Belles Letters. The academy licensed primary school teachers, formulated school methods, and held literary contests that promoted the intellectual and literary progress of the island.
In 1858, Samuel Morse introduced wired communication to Latin America when he established a telegraph system in Puerto Rico. Morse's oldest daughter Susan Walker Morse (1821–1885), would often visit her uncle Charles Pickering Walker who owned the Hacienda Concordia in the town of Guayama. Morse, who often spent his winters at the Hacienda with his daughter and son-in-law, who lived and owned the Habienda Henriqueta, set a two-mile telegraph line connecting his son-in-law's hacienda to their house in Arroyo. The line was inaugurated on March 1, 1859 in a ceremony flanked by the Spanish and American flags. The first lines transmitted by Morse that day in Puerto Rico were:
"Puerto Rico, beautiful jewel! When you are linked with the other jewels of the Antilles in the necklace of the world's telegraph, yours will not shine less brilliantly in the crown of your Queen!"
Minor slave revolts had occurred in the island during this period, However the revolt planned and organized by Marcos Xiorro in 1821, was the most important of them all. Even though the conspiracy was unsuccessful, he achieved legendary status among the slaves and is part of Puerto Rico's folklore.
Struggle for sovereignty 
The last half of the 19th century was marked by the Puerto Rican struggle for sovereignty. A census conducted in 1860 revealed a population of 583,308. Of these, 300,406 (51.5%) were white and 282,775 (48.5%) were persons of color, the latter including people of primarily African heritage, mulattos and mestizos. The majority of the population in Puerto Rico was illiterate (83.7%) and lived in poverty, and the agricultural industry—at the time, the main source of income—was hampered by lack of road infrastructure, adequate tools and equipment, and natural disasters, including hurricanes and droughts. The economy also suffered from increasing tariffs and taxes imposed by the Spanish Crown. Furthermore, Spain had begun to exile or jail any person who called for liberal reforms.
On September 23, 1868, hundreds of men and women in the town of Lares—stricken by poverty and politically estranged from Spain—revolted against Spanish rule, seeking Puerto Rican independence. The Grito de Lares ("Lares Cry" or "Lares Uprising") was planned by a group led by Dr. Ramón Emeterio Betances, at the time exiled to the Dominican Republic, and Segundo Ruiz Belvis. Dr. Betances had founded the Comité Revolucionario de Puerto Rico (Revolutionary Committee of Puerto Rico) in January 1868. The most important figures in the uprising were Manuel Rojas, Mathias Brugman, Mariana Bracetti, Francisco Ramirez Medina and Lola Rodríguez de Tió. The uprising, although significant, was quickly controlled by Spanish authorities.
Following the Grito de Lares revolt, political and social reforms occurred toward the end of the 19th century. On June 4, 1870, due to the efforts of Román Baldorioty de Castro, Luis Padial and Julio Vizcarrondo, the Moret Law was approved, giving freedom to slaves born after September 17, 1868 or over 60 years old; on March 22, 1873, the Spanish National Assembly officially abolished, with a few special clauses, slavery in Puerto Rico. In 1870, the first political organizations on the island were formed as two factions emerged. The Traditionalists, known as the Partido Liberal Conservador (Liberal Conservative Party) were led by José R. Fernández, Pablo Ubarri and Francisco Paula Acuña and advocated assimilation into the political party system of Spain. The Autonomists, known as the Partido Liberal Reformista (Liberal Reformist Party) were led by Román Baldorioty de Castro, José Julián Acosta, Nicolás Aguayo and Pedro Gerónimo Goico and advocated decentralization away from Spanish control. Both parties would later change their names to Partido Incondicional Español (Unconditional Spanish Party) and Partido Federal Reformista (Reformist Federal Party), respectively. In March 1887, the Partido Federal Reformista was reformed and named the Partido Autonomista Puertorriqueño (Puerto Rican Autonomist Party); it tried to create a political and legal identity for Puerto Rico while emulating Spain in all political matters. It was led by Román Baldorioty de Castro, José Celso Barbosa, Rosendo Matienzo Cintrón and Luis Muñoz Rivera.
Leaders of "El Grito de Lares", who were in exile in New York City, joined the Puerto Rican Revolutionary Committee, founded on December 8, 1895, and continued their quest for Puerto Rican independence. In 1897, Antonio Mattei Lluberas and the local leaders of the independence movement of the town of Yauco, organized another uprising, which became known as the "Intentona de Yauco". This was the first time that the current Puerto Rican was unfurled in Puerto Rican soil. The local conservative political factions, which believed that such an attempt would be a threat to their struggle for autonomy, opposed such an action. Rumors of the planned event spread to the local Spanish authorities who acted swiftly and put an end to what would be the last major uprising in the island to Spanish colonial rule.
The struggle for autonomy came close to achieving its goal on November 25, 1897, when the Carta Autonómica (Charter of Autonomy), which conceded political and administrative autonomy to the island, was approved in Spain. In the past 400-plus years, after centuries of colonial rule, Práxedes Mateo Sagasta, the Prime Minister of Spain granted the island an autonomous government on November 25, 1897 in the empire's legislative body in Cádiz, Spain, and trade was opened up with the United States and European colonies. The charter maintained a governor appointed by Spain, who held the power to veto any legislative decision he disagreed with, and a partially elected parliamentary structure. That same year, the Partido Autonomista Ortodoxo (Orthodox Autonomist Party), led by José Celso Barbosa and Manuel Fernández Juncos, was founded. On February 9, 1898, the new government officially began. Local legislature set its own budget and taxes. They accepted or rejected commercial treaties concluded by Spain. In February 1898, Governor General Manuel Macías inaugurated the new government of Puerto Rico under the Autonomous Charter which gave town councils complete autonomy in local matters. Subsequently, the governor had no authority to intervene in civil and political matters unless authorized to do so by the Cabinet. General elections were held in March and on July 17, 1898 Puerto Rico's autonomous government began to function, but not for long.
Invasion of 1898 
In 1890, Captain Alfred Thayler Mahan, a member of the Navy War Board and leading U.S. strategic thinker, wrote a book titled The Influence of Sea Power upon History in which he argued for the creation of a large and powerful navy modeled after the British Royal Navy. Part of his strategy called for the acquisition of colonies in the Caribbean Sea which would serve as coaling and naval stations and which would serve as strategical points of defense upon the construction of a canal in the Isthmus. Since 1894, the Naval War College had been formulating plans for war with Spain and by 1896, the Office of Naval Intelligence had prepared a plan which included military operations in Puerto Rican waters.
On March 10, 1898, Dr. Julio J. Henna and Robert H. Todd, leaders of the Puerto Rican section of the Cuban Revolutionary Party, began to correspond with United States President William McKinley and the United States Senate in hopes that they would consider including Puerto Rico in the intervention planned for Cuba. Henna and Todd also provided the US government with information about the Spanish military presence on the island. On April 24, Spanish Minister of Defense Segismundo Bermejo sent instructions to Spanish Admiral Cervera to proceed with his fleet from Cape Verde to the Caribbean, Cuba and Puerto Rico. In May, Lt. Henry H. Whitney of the United States Fourth Artillery was sent to Puerto Rico on a reconnaissance mission. He provided maps and information on the Spanish military forces to the US government that would be useful for an invasion.
The Spanish-American War broke out in late April. The American strategy was to seize Spanish colonies in the Atlantic — Puerto Rico and Cuba — and their possessions in the Pacific — the Philippines and Guam. On May 10, Spanish forces at Fort San Cristóbal under the command of Capt. Ángel Rivero Méndez in San Juan exchanged fire with the USS Yale under the command of Capt. William C. Wise. Two days later on May 12, a squadron of 12 US ships commanded by Rear Admiral William T. Sampson bombarded installations at San Juan. On June 25, the USS Yosemite blocked San Juan harbor. On July 18, General Nelson A. Miles, commander of US forces, received orders to sail for Puerto Rico and to land his troops. On July 21, a convoy with nine transports and 3,300 soldiers, escorted by USS Massachusetts, sailed for Puerto Rico from Guantánamo. General Nelson Miles landed unopposed at Guánica, located in the southern coast of the island, on July 25, 1898 with the first contingent of American troops. Opposition was met in the southern and central regions of the island but by the end of August the island was under United States control.
On August 12, peace protocols were signed in Washington and Spanish Commissions met in San Juan on September 9 to discuss the details of the withdrawal of Spanish troops and the cession of the island to the United States. On October 1, an initial meeting was held in Paris to draft the Peace Treaty and on December 10, 1898, the Treaty of Paris was signed (ratified by the US Senate February 6, 1899). Spain renounced all claim to Cuba, ceded Guam and Puerto Rico and its dependent islets to the United States, and transferred sovereignty over the Philippines to the United States and in turn was paid $20,000,000 ($550 million in 2013 dollars) by the U.S. General John R. Brooke became the first United States military governor of the island.
United States rule (1898–present) 
Military government 
After the ratification of the Treaty of Paris of 1898, Puerto Rico came under the military control of the United States of America. This brought about significant changes: the name of the island was changed to Porto Rico (it would be changed back to Puerto Rico in 1932) and the currency was changed from the Puerto Rican peso to the United States dollar. Freedom of assembly, speech, press, and religion were decreed and an eight-hour day for government employees was established. A public school system was begun and the U.S. Postal service was extended to the island. The highway system was enlarged, and bridges over the more important rivers were constructed. The government lottery was abolished, cockfighting was forbidden, and a centralized public health service established. Health conditions were poor at the time, with high rates of infant mortality and numerous endemic diseases.
The beginning of the military government also marked the creation of new political groups. The Partido Republicano (Republican Party) and the American Federal Party were created, led by José Celso Barbosa and Luis Muñoz Rivera, respectively. Both groups supported annexation by the United States as a solution to the colonial situation. The island's Creole sugar planters, who had suffered from declining prices, greeted U.S. rule, hoping to gain access to the North American market.
Disaster struck in August 1899, when two hurricanes ravaged the island: Hurricane San Ciriaco on August 8, and an unnamed hurricane on August 22. Approximately 3,400 people died in the floods and thousands were left without shelter, food, or work. The effects on the economy were devastating: millions of dollars were lost due to the destruction of the majority of the sugar and coffee plantations.
Foraker Act of 1900 
The military government in Puerto Rico was short lived; it was disbanded on April 2, 1900, when the U.S. Congress enacted the Foraker Act (also known as the Organic Act of 1900), sponsored by Senator Joseph B. Foraker. This act established a civil government and free commerce between the island and the United States. The structure of the insular government included a governor appointed by the president, an executive council (the equivalent of a senate), and a legislature with 35 members, though the executive veto required a two-thirds vote to override. The first appointed civil governor, Charles Herbert Allen, was inaugurated on May 1, 1900. On June 5, President McKinley appointed an Executive Council which included five Puerto Rican members and six U.S. members. The act also established the creation of a judicial system headed by the Supreme Court of Puerto Rico and allowed Puerto Rico to send a Resident Commissioner as a representative to Congress. The Department of Education was subsequently formed, headed by Dr. M. G. Brumbaugh (later governor of Pennsylvania). Teaching was conducted entirely in English with Spanish treated as a special subject. However, both Spanish and English were official languages in the island. On November 6, the first elections under the Foraker Act were held and on December 3, the first Legislative Assembly took office. Federico Degetau took office in Washington as the first Resident Commissioner from Puerto Rico on March 14, 1901. The Foraker Act, (with the influence of a fearful progressive) placed a limit of 500 acres (2.0 km2) as the amount of land that any one person was allowed to own. This part of the Act was not enforced and, thus, Puerto Rico's agricultural economy was transformed into a sugar monoculture economy. American sugar companies had an advantage over the local sugar plantation owners. The local plantation owner could only finance his operations at local banks which offered high interest rates compared to the low rates that the American companies received from the commercial banks in Wall Street. This factor, plus the tariffs now imposed, forced many of the local sugar plantation owners to go bankrupt or to sell their holdings to the more powerful sugar companies. Sugar was considered one of the few strategic commodities in which the United States was not fully self-sufficient.
The new political status sparked the creation of more political groups on the island. In 1900, the Partido Federal (Federal Party) and the Partido Obrero Socialista de Puerto Rico (Socialist Labor Party of Puerto Rico) were founded. The former campaigned for Puerto Rico to become one of the states in the United States while the latter followed the ideals of the Socialist Labor Party of America. Four years later, in 1904, Luis Muñoz Rivera and José de Diego restructured the American Federal Party into the Partido Unionista de Puerto Rico (Unionist Party of Puerto Rico) with the intention of fighting against the colonial government established under the Foraker Act. In 1909, Rosendo Matienzo Cintrón, Manuel Zeno Gandía, Luis Lloréns Torres, Eugenio Benítez Castaño, and Pedro Franceschi founded the Partido Independentista (Independence Party). It was the first political party whose agenda was the independence of Puerto Rico.
The status quo was again altered in 1909 when the Foraker Act, due to weaknesses and a small crisis in Puerto Rico's government, was modified by the Olmsted Amendment. This Amendment placed the supervision of Puerto Rican affairs in the jurisdiction of an executive department to be designated by the president. In 1914, the first Puerto Rican officers, Martin Travieso (Secretary) and Manuel V. Domenech (Commissioner of Interiors), were assigned to the Executive Cabinet, allowing islanders a majority. A 1915 delegation from Puerto Rico, accompanied by the Governor Arthur Yager, traveled to Washington, D.C. to ask Congress to grant the island more autonomy. This delegation and speeches made by Resident Commissioner Luis Muñoz Rivera in Congress, coupled with political and economic interests, led to the drafting of the Jones-Shafroth Act of 1917 (Jones Act).
Jones Act of 1917 
The Jones Act was approved by the U.S. Congress on December 5, 1916, and signed into law by President Woodrow Wilson on March 2, 1917. The law made Puerto Rico a United States territory which is "organized but unincorporated." Puerto Ricans were also collectively given a restricted U.S. citizenship. This implied that Puerto Ricans in the island did not have full American citizenship rights, such as the right to vote for Electors for the president of the United States. via the Jones Act. The Act allowed conscription to be extended to the island, sending 20,000 Puerto Rican soldiers to the United States Army during the First World War. The Act also divided governmental powers into three branches: executive (appointed by the President of the United States), legislative, and judicial. The legislative branch was composed of the senate, consisting of 19 members, and a house of representatives, consisting of 39 members. The members of the legislature were freely elected by the Puerto Rican people. A bill of rights, which established elections to be held every four years, was also created. The Act also made English the official language of the Puerto Rican courts.
On October 11, 1918, an earthquake occurred, with an approximate magnitude of 7.3 on the Richter scale, accompanied by a tsunami reaching 6.1 metres (20 ft) in height. The epicenter was located northwest of Aguadilla in the Mona Passage (between Puerto Rico and the Dominican Republic). This earthquake caused great damage and loss of life at Mayagüez, and lesser damage along the west coast. Tremors continued for several weeks.
As a consequence of the Jones Act and the establishment of elections, a new political party, the Partido Nacionalista de Puerto Rico (Puerto Rican Nationalist Party), was founded on September 17, 1922. In the 1930s, the Nationalist Party, led by Pedro Albizu Campos withdrew from political participation and increased conflict arose between their adherents and the authorities.
On October 23, 1935, A student assembly was held at the University of Puerto Rico, where Albizu Campos was declared "persona non grata". It was requested that Governor Blanton Winship provide and place armed police officers on the grounds of the university in case the situation turned violent. This responsibility pertained to Colonel Elisha Francis Riggs, the U.S. appointed Police Chief. A couple of police officers spotted what they believed to be a suspicious looking automobile and asked the driver Ramón S. Pagán, who was accompanied by his friend Pedro Quiñones, for his license. A fight between the men in the car and the police soon followed which resulted in the death of four nationalist and one bystander. On February 23, 1936, two Nationalists Hiram Rosado and Elias Beauchamp, in retaliation for the "Rio Piedras Massacre," killed Police Chief Riggs in San Juan. They were apprehended and summarily executed at police headquarters. On July 31, 1936, Pedro Albizu Campos, Juan Antonio Corretjer, Clemente Soto Vélez and other Nationalists were sentenced to six to 10 years in federal prison.
|You may watch newsreel scenes of the Ponce Massacre here|
On March 21, 1937, a peaceful march was organized by the Nationalist Party to commemorate the ending of slavery in Puerto Rico by the governing Spanish National Assembly in 1873. The police, under the orders of General Blanton Winship, the US-appointed colonial Governor of Puerto Rico, opened fire at the peaceful Puerto Rican Nationalist Party parade, bringing about what came to be known as the "Ponce Massacre": 19 people (including two policemen) were killed and over 100 were wounded. On July 25, 1938, a little over a year after the Ponce massacre, Governor Winship ordered a military parade take place in the city of Ponce in celebration of the American invasion of Puerto Rico. Such celebration customarily took place in San Juan, the capital of the colonial government. At the parade, an attempt was made to assassinate Winship, allegedly by members of the Nationalist Party. It was the first time in Puerto Rico's long history that an attempt had been made against a governor. Although Winship escaped unscathed, a total of 36 people were wounded, including a colonel in the National Guard and the Nationalist gunman.
Establishment of the Commonwealth 
In the years after World War II, social, political and economical changes began to take place that have continued to shape the island's character today. The late 1940s brought the beginning of a major migration to the continental United States, mainly to New York City. The main reasons for this were an undesirable economic situation brought by the Great Depression, as well as heavy recruitment made by the U.S. armed forces and U.S. companies. Political changes began in 1946 when President Truman designated the first Puerto Rican, Commissioner Resident Jesús T. Piñero, to serve as island governor. On June 10, 1948, Piñero, signed the infamous "Ley de la Mordaza" (Gag Law) or Law 53 as it was officially known, passed by the Puerto Rican legislature presided by Luis Muñoz Marín on May 21, 1948, which made it illegal to display the Puerto Rican Flag, sing a patriotic song, talk of independence and to fight for the liberation of the island. It resembled the anti-communist Smith Law passed in the United States.
The U.S. Congress passed an act allowing Puerto Ricans to vote for their own governor and the first elections under this act were held on November 2, 1948. Luis Muñoz Marín, president of the Puerto Rican Senate, successfully campaigned and became the first democratically elected Governor of the island on January 2, 1949.
On July 4, 1950, President Harry S. Truman signed Public Act 600, which allowed Puerto Ricans to draft their own constitution establishing the Commonwealth of Puerto Rico. The U.S. Congress had granted commonwealth status on Puerto Rico that enhanced Puerto Rico's political status from protectorate to commonwealth. This, coupled with Muñoz Marín's reversal on not pursuing Puerto Rican Independence angered some Puerto Ricans.
On October 30, 1950, a group of Puerto Rican nationalists, led by Pedro Albizu Campos, staged several local attacks, known as the Puerto Rican Nationalist Party Revolts of the 1950s, the most successful of which is known as the Jayuya Uprising. The revolts included an attack on the governor's mansion, La Fortaleza, and the next day at Blair House, where two nationalists tried to storm in to assassinate United States President Harry S. Truman. These acts led Muñoz to crack down on Puerto Rican nationalists and advocates of Puerto Rican independence. The actions by both Muñoz and the United States' Government would later be determined as infringing on constitutional rights.
On July 25, 1952, the Constitution of Puerto Rico was approved by voters in a referendum, and the island organized as the Estado Libre Asociado (Commonwealth of Puerto Rico). That same year marked the first time that the Flag of Puerto Rico could be publicly displayed. In March 1954, four Nationalists fired guns from the visitors gallery in the US House of Representatives at the Capitol, to protest the lack of Puerto Rican independence.
Luis A. Ferré founded the Partido Estadistas Unido (United Statehooders Party) to campaign for statehood in the 1967 plebiscite. On July 23, 1967, the first plebiscite on the political status of Puerto Rico was held. Voters overwhelmingly affirmed continuation of Commonwealth status (Commonwealth–60.4% Statehood–39%; Independence–0.6%). Other plebiscites have been held to determine the political status of Puerto Rico, in 1993 and in 1998. Both times, although by smaller margins, the status quo has been upheld. In 2012, a majority voted to become a state.
As the U.S. constitution does not include this avenue to catalyze admission as a state or change of status, legally the island remains a territory of the United States, under congressional supervision. The Partido Estadistas Unido organized the Partido Nuevo Progresista (New Progressive Party) under Ferré's leadership. The party campaigned for Puerto Rico to become the 51st state of the Union. Luis A. Ferré was elected governor on November 5, 1968, with 43.6% of the vote, the first time a pro-statehood governor has received a plurality. The New Progressive Party, the Popular Democratic Party, and the Independence Party constitute the current established political parties in the island.
Economic history 
Coffee was a major industry before the 1940s. Arabica beans were introduced to the island in 1736. Production soared in the central mountainous area after 1855 because of cheap land, a low-paid and plentiful workforce, good credit facilities, and a growing market in the U.S., Spain and Europe. Decline set in after 1897, and the end came with a major hurricane in 1928 and the 1930s depression. While coffee declined, sugar and tobacco grew in importance, thanks to the large mainland market.
The island's social and economic structure modernized after 1898, with new infrastructure such as roads, ports, railroads and telegraph lines, and new public health measures. The high infant mortality death rate of the late 19th century declined steadily, thanks in large measure to basic public health programs.
Land tenure did not become concentrated in fewer hands, but incomes increased as American agribusiness and capital investments arrived. The land tenure system in the firm control of local farmers (small, medium, and large). After 1940 dairying became an industry second only to sugar, and had a higher dollar output than the better-known traditional crops - coffee and tobacco.
In the 1920s, the economy of Puerto Rico boomed. A dramatic increase in the price of sugar, Puerto Rico's principal export, brought cash to the farmers. As a result the island's infrastructure was steadily upgraded. New schools, roads and bridges were constructed. The increase in private wealth was reflected in the erection of many residences, while the development of commerce and agriculture stimulated the extension of banking and transport facilities. THowever, the economic growth would come to a screeching halt in 1929 when the New York stock market crashed and the worldwide Great Depression began.
This period of prosperity came to an end with the onset of the Great Depression. At the time, agriculture was the main contributor to the economy. Industry and commerce slowed during the 1930s as well. The problems were aggravated when on September 27, 1932, Hurricane San Ciprián struck the island. Exact figures of the destruction are not known but estimates say that 200–300 people were killed, more than a thousand were injured, and property damage escalated to $30–50 million ($500 million to $840 million as of 2013).
The agricultural production, the principal economic driver for the island, came to a standstill. Under President Franklin D. Roosevelt's New Deal, a Puerto Rican Reconstruction Administration was authorized. Funds were made available for construction of new housing, infrastructure, including transportation improvements and other capital investment to improve island conditions. In 1938, a new federal minimum wage law was passed, establishing it at 25 cents an hour. As a consequence, two-thirds of the island's textile factories closed because they could not be profitable while paying workers at that level.
Since 1945 
After World War II, large numbers of young people migrated to the mainland's industrial cities for work and remitted dollars back to their families. In 1950 Washington introduced Operation Bootstrap, which greatly stimulated economic growth from 1950 until the 1970s. Due to billions of dollars of corporate investments, the growth rate was 6% for the 1950s, 5% for the 1960s, and 4% for the 1970s. Puerto Rico became one of the most affluent economies in Latin America. But, it had to import 80% of its food.
Operation Bootstrap was sponsored by governor Muñoz Marín. It was coupled with agrarian reform (land redistribution) that limited the area that could be held by large sugarcane interests. Operation Bootstrap enticed US mainland investors to transfer or create manufacturing plants by granting them local and federal tax concessions, but maintaining the access to mainland markets free of import duties. Another incentive was the lower wage scales in the densely populated island. The program accelerated the shift from an agricultural to an industrial society. The 1950s saw the development of labor-intensive light industries, such as textiles; later manufacturing gave way to heavy industry, such as petrochemicals and oil refining, in the 1960s and 1970s. Muñoz Marín's development programs brought some prosperity for an emergent middle class. The industrialization was in part fueled by generous local incentives and freedom from federal taxation, while providing access to continental US markets without import duties. As a result, a rural agricultural society was transformed into an industrial working class.
|Newsreel scenes in Spanish of the Puerto Rican Nationalist Party Revolts of the 1950s here|
Present-day Puerto Rico has become a major tourist destination and a leading pharmaceutical and manufacturing center, as well as a major financial center for the Caribbean.
Puerto Rico continues to struggle to define its political status. Even though Puerto Rico was granted local autonomy in 1952, it remains a territory of the United States. Its ambiguous status continues to spark political debates which dominate Puerto Rican society. Economically, Puerto Rico has recently seen its credit rating downgraded to Baa2 by Moody's Investor Services with the possibility of more downgrades happening in the near future. This has led to fiscal measures to reduce government spending, increase revenues and balance the budget, and the implementation of a 7% sales tax.
See also 
- Cultural diversity in Puerto Rico
- List of Registered Historic Places in Puerto Rico
- List of Puerto Ricans
- Military history of Puerto Rico
- Official Historian of Puerto Rico
- Real Cédula de 1789 "para el comercio de Negros"
- Rouse, Irving. The Tainos : Rise and Decline of the People Who Greeted Columbus ISBN 0-300-05696-6.
- Mahaffy, Cheryl (January 28, 2006). "Vieques Island - What lies beneath". Edmonton Journal. Retrieved February 11, 2006.
- Figueroa, Ivonne (July 1996). "Taínos". Retrieved March 20, 2006.
- Pedro Torres. "The Dictionary of the Taíno Language". Taino Inter-Tribal Council Inc. Retrieved February 11, 2006.
- "The second voyage of Columbus". World Book, Inc. Retrieved February 11, 2006.[dead link]
- Vicente Yañez Pinzón is considered the first appointed governor of Puerto Rico, but he never arrived on the island.
- Rouse, Irving. The Tainos- Rise and Decline of the People Who Greeted Columbus pg. 155. Yale University Press. ISBN 0-300-05181-6.
- PROCLAMATION precented by Dennis O. Freytes, MPA, MHR, BBA, Chair/Facilitator, 500TH Florida Discovery Council Round Table, American Veteran, Community Servant, VP NAUS SE Region; Chair Hispanic Achievers Grant Council
- Mari, Brenda A. (April 22, 2005). "The Legacy of Añasco: Where the Gods Come to Die". Puerto Rico Herald. Archived from the original on April 27, 2006. Retrieved March 1, 2006.
- Jones, W.A. "Porto Rico". Catholic Encyclopedia. Retrieved March 4, 2006.
- "Religion". Puerto Rico: A Guide to the Island of Boriquén. Federal Writers Project. 1940. Retrieved March 6, 2006.
- "Puerto Rico and the Death Penalty". Death Penalty Information Center. Retrieved March 21, 2006.
- Dietz, p.38.
- "Hispanic Firsts", By; Nicolas Kanellos, publisher Visible Ink Press; ISBN 0-7876-0519-0; p.40
- "La Fortaleza/San Juan National Historic Site, Puerto Rico". National Parks Services. Archived from the original on February 8, 2006. Retrieved March 1, 2006.
- Miller, Paul G. (1947).Historias de Puerto Rico,221–237.
- "The Life of Sir Francis Drake". July 20, 2004. Retrieved March 1, 2006.
- The exact number of ships and troops is presently uncertain. The number of ships varies from 60 to 64 ships and the number of troops varies from 7,000 to 13,000. No exact number of ships is given by British accounts. For more information see Alonso, María M., The Eighteenth Century Caribbean & The British Attack on Puerto Rico in 1797 ISBN 1-881713-20-2.
- Alonso, María M. "Chapter XIV - Abercromby's Siege". The Eighteenth Century Caribbean & The British Attack on Puerto Rico in 1797. Retrieved February 28, 2006.
- Caro Costas, Aida R. (1980). Antología de Lecturas de Historia de Puerto Rico (Siglos XV-XVIII), p. 467.
- Abbad y Lasierra, Iñigo. Historia Geográfica, Civil y Política de Puerto Rico. S.l.: Univ Of Puerto Rico Pr. ISBN 0-8477-0800-4. (Spanish)
- Interview of Thomas Ellingwood Fortin, Producer, NEW ALBION PICTURES
- Words from Pres. Ronald Reagan
- "Aspectos políticos en Puerto Rico: 1765–1837". Retrieved March 4, 2006. (Spanish)
- 150th. Anniversary of the Foundation of Arroyo, Puerto Rico
- Welcome to Puerto Rico
- NY/Latino Journal; Taking the PE Out of PRT; by: Rafael Merino Cortes; July 20, 2006
- "Slave revolts in Puerto Rico: conspiracies and uprisings, 1795-1873"; by: Guillermo A. Baralt; Publisher Markus Wiener Publishers; ISBN 1-55876-463-1, ISBN 978-1-55876-463-7
- Grose, Howard B., Advance in the Antilles; the new era in Cuba and Porto Rico, OCLC 1445643
- Brás, Marisabel
- Brás, Marisabel, par. 8
- Brás, Marisabel, par. 8-13
- These clauses included that slaves were required to continue working for three more years and that the owners would be compensated 35 million pesetas per slave.
- Brás, Marisabel, par. 9
- Negroni, Héctor Andrés (1992). Historia militar de Puerto Rico (in Spanish). Sociedad Estatal Quinto Centenario. ISBN 84-7844-138-7 Unknown parameter
- "Chronology of Puerto Rico in the Spanish-American War". Library of Congress. Retrieved March 10, 2006.
- This legislature consisted of a Council of Administration with eight elected and seven appointed members, and a Chamber of Representatives with one member for every 25,000 inhabitants.
- "Strategy as Politics'; by: Jorge Rodriguez Beruff; Publisher: La Editorial; Universidad de Puerto Rico; page 7; ISBN 978-0-8477-0160-5
- The World of 1898: The Spanish-American War. Hispanic Division, Library of Congress. Retrieved 2008-08-03
- "Military Government in Puerto Rico". Library of Congress. Retrieved March 26, 2006.
- Blackburn Moreno, Ronald (February 2001). "Brief Chronology of Puerto Rico" (PDF). ASPIRA Association, Inc. Archived from the original on February 17, 2006. Retrieved February 11, 2006.
- Emma Davila-Cox, Puerto Rico in the Hispanic-Cuban-American War: Re-assessing 'the Picnic', in The Crisis of 1898: Colonial Redistribution and Nationalist Mobilization (Macmillan Press: New York and London, 1999) Pg. 113
- "Hurricane San Ciriaco". Library of Congress. Retrieved March 26, 2006.
- "Foraker Act (Organic Act of 1900)". Library of Congress. Retrieved March 10, 2006.
- The Puerto Rican members were José Celso Barbosa, Rosendo Matienzo Cintrón, José de Diego, Manuel Camuñas and Andrés Crosas. The US members were William H. Hunt, Secretary; Jacob Hollander, Treasurer; J. R. Garrison, Auditor; W. B. Eliot, Interiors; James A. Harlan, Attorney General; and Dr. Martin G. Brumbaugh, Secretary of Education.
- "Strategy as Politics'; by: Jorge Rodriguez Beruff; Publisher: La Editorial; Universidad de Puerto Rico; page 27; ISBN 978-0-8477-0160-5
- "An American Empire: Relations with Territories gained in the Treaty of Paris 1898". National Center for History in the Schools Standards. Archived from the original on August 20, 2005. Retrieved March 21, 2006.
- "Jones Act". Library of Congress. Retrieved March 10, 2006.
- The Louisiana Purchase and American Expansion: 1803-1898. By Sanford Levinson and Bartholomew H. Sparrow. New York: Rowman and Littlefield Publishers. 2005. Page 166, 178. "U.S. citizenship was extended to residents of Puerto Rico by virtue of the Jones Act, chap. 190, 39 Stat. 951 (1971) (codified at 48 U.S.C. § 731 (1987)")
- "Earthquake of 1918". Puerto Rico Seismic Network. Retrieved March 12, 2006.
- "Puerto Rico Por Encima de Todo: Vida y Obra de Antonio R. Barcelo, 1868-1938"; by: Dr. Delma S. Arrigoitia; Page 292; Publisher: Ediciones Puerto (January 2008); ISBN 978-1-934461-69-3
- Leibowitz, Arnold (1989). Defining Status:A Comprehensive Analysis of United States - Territorial Relations. Springer. pp. 156–57. ISBN 0-7923-0069-6.
- "Puerto Rico: Migrating to a new land". Library of Congress. April 22, 2004. Retrieved March 10, 2006.
- "Hispanic population in the United States". Retrieved June 17, 2007.
- Puerto Rican History
- González, Juan (May 23, 2000). "FBI Files on Puerto Ricans". Retrieved March 24, 2006.
- "Freedom of Information and Privacy Acts Section" (PDF). Federal Bureau of Investigation. Retrieved March 24, 2006.
- A literal translation of Estado Libre Asociado would be Free Associated State but since the US is composed of states it was deemed cumbersome to make this the official name, hence Commonwealth of Puerto Rico was chosen.
- From 1895 to 1952 the Puerto Rican flag was outlawed.
- "Elections in Puerto Rico: Results 1967 Plebiscite". Retrieved March 14, 2006.
- For the complete statistics regarding these plebiscites please refer to Elections in Puerto Rico:Results.
- James L. Dietz (1987). Economic History of Puerto Rico: Institutional Change and Capitalist Development. Princeton U.P. p. 100.
- Laird W. Bergad, "Agrarian History of Puerto Rico, 1870-1930," Latin American Research Review (1978) 13#3 pp. 63-94 in JSTOR
- José O. Solá, "Colonialism, Planters, Sugarcane, and the Agrarian Economy of Caguas, Puerto Rico, Between the 1890s and 1930," Agricultural History, (Summer 2011) 85#3 pp 349-372
- Donald D. MacPhail, "Puerto Rican Diarying: A Revolution in Tropical Agriculture," Geographical Review, (1963) 53#2 pp 224-226
- "Agriculture". Puerto Rico: A Guide to the Island of Boriquén. Federal Writers Project. 1940. Retrieved March 6, 2006.
- "Industry, Commerce, and Labor". Puerto Rico: A Guide to the Island of Boriquén. Federal Writers Project. 1940. Retrieved March 6, 2006.
- Hodgson, Michael, E. and Palm, Risa I. Natural Hazards in Puerto Rico: Attitudes, Experience, and Behavior of Homeowners. 1993.
- A. W. Maldonado, Teodoro Moscoso and Puerto Rico's Operation Bootstrap (1997), a biography of the key leader of the Operation.
- Ricardo Campos and Frank Ricardo, "Bootstraps and Enterprise Zones: The Underside of Late Capitalism in Puerto Rico and the United States," Review: A Journal of the Fernand Braudel Center, (1982) 5#4 pp 556-590
- "Resistance in Paradise: Rethinking 100 Years of U.S. Involvement in the Caribbean and the Pacific". American Friends Service Committee. Archived from the original on February 22, 2006. Retrieved March 19, 2006.
- "Luis Muñoz Marín Foundation". Retrieved February 25, 2006.
- "Moody's places Puerto Rico's credit rating in watchlist for a possible downgrade" (PDF). Government Development Bank of Puerto Rico. Archived from the original on May 5, 2006. Retrieved March 15, 2006.
General references 
- Brás, Marisabel. The Changing of the Guard: Puerto Rico in 1898; The World of 1898: The Spanish-American War; Hispanic Division, Library of Congress. Retrieved on 2007-06-18
- Dietz, James L. (1987). Economic History of Puerto Rico. Princeton University Press. ISBN 0-691-02248-8.
- Fernández, Ronald (1996). The Disenchanted Island : Puerto Rico and the United States in the Twentieth Century (2nd ed.). Praeger Paperback. ISBN 0-275-95227-4.
- Jiménez de Wagenheim, Olga; Wagenheim, Kal (2002). The Puerto Ricans: A Documentary History. Markus Wiener Publishers. ISBN 1-55876-291-4.
- Morales Carrión, Arturo (1984). Puerto Rico: A Political and Cultural History. W. W. Norton & Company. ISBN 0-393-30193-1.
- Van Middledyk, R.A. (2004). The History of Puerto Rico. IndyPublish.com. ISBN 1-4142-3037-0.
- "WWW-VL: History: Puerto Rico". The World Wide Web Virtual Library. Retrieved March 19, 2006.[dead link]
Further reading 
- Cordasco, Francesco (1973). The Puerto Rican Experience: A Sociological Sourcebook. Littlefield Adams. ISBN 0-8226-0259-8.
- Duany, Jorge (2002). The Puerto Rican Nation on the Move: Identities on the Island and in the United States. The University of North Carolina Press. ISBN 0-8078-5372-0.
- Johnson, Robert D. (1997). "Anti-Imperialism And The Good Neighbour Policy: Ernest Gruening and Puerto Rican Affairs, 1934–1939". Journal of Latin American Studies 29 (1): 89–110. doi:10.1017/S0022216X96004634.
- Kurlansky, Mark (1992). A Continent of Islands: Searching for the Caribbean Destiny. Addison-Wesley Publishing. ISBN 0-201-52396-5.
- Ramos, Reniel Rodriguez. Rethinking Puerto Rican Precolonial History (University of Alabama Press; 2010) 267 pages; examines successive cultures on the island before 1493.
- Rivera Batiz, Francisco L.; Santiago, Carlos E. (1998). Island Paradox: Puerto Rico in the 1990s. Russell Sage Foundation Publications. ISBN 0-87154-751-1.
Primary sources 
- Report of Brig. Gen. Geo. W. Davis, U. S. V., on civil affairs of Puerto Rico: 1899 online, Official report of the U.S. Military Governor; full text online