List of Mexican inventions and discoveries
Mexican inventions and discoveries are objects, processes or techniques invented or discovered, partially or entirely, by a person from Mexico. These also include concepts or practices introduced by Mexican people and their indigenous ancestors. Some of the objects, processes or techniques developed in the Pre-Columbian era were also invented or discovered independently in other cultures. This list shows only inventions and discoveries first introduced in present-day Mexican territory, or those that vary significantly in concept, figure, or use.
Pre-Hispanic
[edit]Musical instruments
[edit]Art
[edit]- Painting – Classic period Maya paintings, found in the archaeological sites of Cacaxtla and Bonampak, are some of the most refined paintings ever to come out of the ancient Americas. Besides the Maya, other indigenous civilizations were also known for their wall paintings, including the Aztec, who developed the art of sand painting.
- Pottery – many indigenous American cultures and peoples independently invented and then refined pottery in the Americas into fine works of art, as well for utilitarian usage. The Moche and Maya were some of the best potters from the ancient Americas, and their work still inspires awe amongst us for the level of artistry, creativity, and sophistication, which such highly prized works of arts involved. Many other indigenous American cultures also developed their own pottery styles during the pre-Columbian time periods and continued to refine their artwork into the modern era.
Calendrics
[edit]- Xiuhpōhualli:One of several calendars used by the Aztec, it consisted of 365 days and held great importance for religious rituals and agricultural practices.
- Mesoamerican calendars
- Almanacs –
The earliest texts considered to be almanacs have been found in the Near East, dating back to the middle of the second millennium BC. But almanacs were invented independently by the Maya peoples. Their culture arose, and presumably began using almanacs, around 3,500 years ago, while Europeans are known to have created written almanacs only after 1150 CE. Almanacs are books containing meteorological and astronomical information, which the Maya used in various aspects of their life.[1]
Engineering
[edit]- Aqueducts:The Aztecs constructed complex, dual-pipe aqueducts to supply their vast city of Tenochtitlan.
- Canals:the Aztecs constructed great canals used for transporting food, cargo, and relaying people to the chinampas (floating gardens used for growing food) in their great metropolis of Tenochtitlan.[2]
- Causeway:the Aztec built many giant causeways that connected the mainland to their capital city of Tenochtitlan, located in the heart of the Aztec Empire. The causeways served as arteries used for transporting food, goods, people, captive warriors, and wastes during the heyday of the Aztec Empire in the 14th century to the 16th century.[3]
- Dams – the Aztec in Tenochtitlan constructed great dams during the heyday of the Aztec Empire. Tenochtitlan, the capital of the Aztec empire, was first built on a small island that was located in the western section of Lake Texcoco in 1325 CE. The Aztec created various large artificial islands around the small island using a system that was similar to building the chinampas (floating gardens in the lake that was used to grow food for the cities' population). To provide drinking water to the cities' population of over a quarter of a million inhabitants, the Aztec built a system of dams that separated the salty waters of the lake from the rainwater that was accumulated during periods of heavy rains. The Aztec also used the dam to control the level of water in the lake and prevent their city from being flooded during times of heavy rains. To prevent flooding, the Aztec constructed an inner system of channels that helped to control the water level and held the level steady during flooding and periods of intense rains. Hernán Cortés, and the other Spanish conquistadors, destroyed these engineering marvels that the Aztec had developed during the previous 200 years.[4]
- Palaces:indigenous American civilizations such as the Olmecs, Mayans, Zapotecs, Aztecs, Mixtecs, Moche, Toltecs, Inca, Chimú, Nazca and many more built elaborate palaces. The Mayan palace in Palenque is one of the best examples of Mayan palace architecture.
- Pyramids:advanced civilizations in Mexico, such as the Toltecs, Olmecs, Zapotecs, Aztecs, Mayans, Mixtecs, developed their own myriad styles of pyramids, usually step pyramid, which served for ceremonial/religious and administrative functions. In Mesoamerica, the largest pyramid in the world—The Great Pyramid of Cholula—began to be constructed by the inhabitants of Cholula in the 3rd century BCE. In the Andean regions, the Moches, and some ancient Peruvians also constructed gigantic pyramids as well without any influence from Old World civilizations.
- Planned city construction:Ancient cities in Mexico–such as Teotihuacan and the Aztec capital of Tenochtitlan–incorporated planned city design, including streets laid out in a grid pattern.
- Plumbing:The Maya have been found to be the earliest inventors of plumbing in Mesoamerica, with the earliest example of a pressurized water system being constructed in 750 CE—or earlier. This pressurized water system was located in the Maya site of Palenque, where public baths and toilets were accessible to the residents of the ancient city.[5]
- Wheel and axle:Mesoamericans invented wheels but only used these as toys. The oldest wheeled figure to have been uncovered in Mesoamerica is a crowned, dog-like figure in Tres Zapotes, Veracruz, dated ca. 100–200 CE. The most common examples of the Mesoamerican wheel and axle are Aztec clay wheeled toys.[6]
- Observatories:Mesoamerican astronomers constructed towers to observe the movements of the planets and other astronomical features and events. Although culture groups throughout the world have observed the planets and stars and recorded their movements, the stone structures of the Mesoamerican and Andean culture groups are significant because they show the emphasis these early astronomers placed on making clear and accurate observations. The most notable example of Maya astronomical observatories is Caracol, in Chichén Itzá. In 1975, archaeoastronomers Anthony F. Aveni and Horst Hartung surveyed the site and suggested that ancient Maya astronomers used the structure to observe the planet Venus. The Maya, as well as other Mesoamerican culture groups, used Venus to set times for ceremonies and as a divination tool.[7]
Metal production
[edit]- Metallurgy in pre-Columbian Mesoamerica:The emergence of metallurgy in pre-Columbian Mesoamerica occurred relatively late in the region's history, with distinctive works of metal apparent in West Mexico by roughly AD 800, and perhaps as early as AD 600.[8] Metallurgical techniques likely diffused northward from regions in Central or South America via maritime trade routes; recipients of these metallurgical technologies apparently exploited a wide range of material, including alloys of copper-silver, copper-arsenic, copper-tin and copper-arsenic-tin.[9]
Navigation
[edit]The Olmec may have developed compasses for navigation and astronomical study that were made out of lodestones.
Games and entertainment
[edit]- Patolli
- Balloons: Invented by the Olmec.[10]
- Spinning top: Known from Mesoamerican times. A device used as a toy and made out of wood.[11]
Food preparation
[edit]- Nixtamalization
- Salsa
- Tomato sauce
- taco
- Pozole
- Burrito
- Atole
- tortillas
- Tostada
- Pozol
- tamales
- Nopales
- Tlacoyo
- Chapulines
- Popcorn: First invented by the Zapotec and later introduced to Hernán Cortés by the Aztec[12]
- Guacamole: The name comes from an Aztec dialect via Nahuatl āhuacamolli [aːwakaˈmolːi], which literally translates to avocado puree.
- Chocolate: Believed to have been invented by the Olmec from cocoa beans, both the Mayan and the Aztec drank it hot, thus creating the hot chocolate.
Crops and cultivation
[edit]- Guava
- Rubus
- Sweet potato (possibly)
- Papaya
- Cocoa bean
- sunflower seed
- Squash
- Beans
- Pachyrhizus erosus
- Vanilla: the Totonac are believed to had been the first to extract vanilla from the pods of vanilla orchids and use it as a flavor enhancer.[13]
- Cotton
- Sisal production invented by the Maya.
- Tobacco
- Bottle gourds – the ancient Mexicans learned to first cultivate bottle gourds around 8,000 BCE. Indigenous peoples grew bottle gourds for use as bowls, scoops, colanders, ladles, spoons, canteens, and dippers. Larger gourds were used as cooking vessels.[14]
- Chinampa: Invented in central Mexico around 600 CE
Livestock
[edit]- Turkey (bird):Approximately 2,000 years ago, ancient Mesoamericans domesticated the turkey during the Late Preclassic period—from 300 BCE to 100 CE.[15]
Fashion
[edit]- Huipil
- Umbrellas:independent of the ancient Chinese (who had also invented the umbrellas on their own), the Maya and the Inca had invented circular umbrellas, which were made from bird feathers.[16]
- Hand Fan:The Aztecs developed circular handheld fans made of feathers and other materials that served as a status symbol, and were used for warfare activities.
Dog breeds
[edit]- xochiocoyotl (coyote), xoloitzcuintli (known as xolo or Mexican hairless),
- chihuahua
Body armor
[edit]- Bulletproof vest:Ichcahuipilli, was a military armor used by various Mesoamerican cultures. It consisted of a layered cotton shirt, at least 2 inches thick, hardened with brine and other substances. It was originally intended to protect the wearer against projectiles and other weaponry, such as spears, arrows, and obsidian swords, but later was discovered to be capable of stopping musket shots.[17]
Dentistry
[edit]- Tooth transplantion: First practiced by the Maya.
Medication
[edit]- Antispasmodic medication, invented by the Aztecs.
- Ephedra:the Aztecs used ephedra in order to treat common colds. Unlike the Chinese version of the ephedra, the New World ephedra that was used by the indigenous Americans contained milder alkaloids.
- Antibiotics: The Aztecs developed antibiotic treatments by cultivating fungi on tortillas.
Botanical name | Nahuatl name | Uses |
---|---|---|
Artemisia mexicana | Itztuahyatl | Weakness, colic, reduce fever; coughing |
Bocconia frutescens | Cococxihuitl | Constipation, abscesses, swelling |
Bromelia pinguin | Mexocotl | heat blisters in the mouth |
Carica papaya | Chichihualxo-chitl | Latex unripe fruit for rash ulcer; ripe fruit digestive |
Casimiroa edulis | Cochitzapotl | sedative |
Cassia occidentalis or Cassia alata | Totoncaxihuitl | Astringent, purgative, anthelmintic, relieves fever, inflammation of rashes |
Chenopodium graveolens | Epazotl | Against dysentery, anthelmintic, helps asthmatics breathe |
Euphorbia calyculata | Cuauhtepatli; chupiri | Purgative, skin ailments, mange, skin sores |
Helianthus annuus | Chilamacatl | fever |
Liquidambar styraciflua | Ocotzotl; xochiocotzotl quanhxihuitl | Rashes, toothache, tonic for stomach |
Montanoa tomentosa | Cihuapatli | Diuretic, oxytocic, cures hydropesia |
Passiflora jorullensis | Coanenepilli | Causes sweating, Diuretic, pain reliever, poisons and snake bites |
Perezia adnata | Pipitzahuac | Purgative, cathartic, coughing, sore throat |
Persea americana | Auacatl; ahuaca quahuitl | Astringent, treat sores, remove scars |
Pithecolobium dulce | Quamochitl | Astringent, causes sneezing, cures ulcers and sores |
Plantago mexicana | Acaxilotic | Vomit and cathartic |
Plumbago pulchella | Tlepatli; tletlematil; itzcuinpatli | Diuretic, colic, gangrene |
Psidium guajava | Xalxocotl | Digestion, dysentery, mange |
Rhamnus serrata | Tlalcapulin | Dysentery, bloody bowels |
Salix lasiopelis | Quetzalhuexotl | Stops blood from rectum, cures fever |
Schoenocaulon coulteri; Veratrum frigidum | Zoyoyatic | Causes sneezing, kills mice/lice/flies |
Smilax atristolochiaefolia | Mecapatli | Causes sweating, diuretic, relieves joint pain |
Tagetes erecta | Cempohualxochitl | Causes sweating, cathartic, cures dropsy |
Talauma mexicana | yolloxochitl | Comforts heart, used against sterility |
Theobroma cacao | Cacahuaquahuitl | Excess diarrhea, can cause dizziness |
Math
[edit]- Number 0, invented by the Maya or possibly the Olmec.
- The ancient Mexicans also developed complex arithmetic functions and operations such as additions, subtractions, divisions, and multiplications. The development of mathematics by the Mexicans assisted them in making sense of the universe, cosmos, astronomy, architecture, and pre-Columbian calendars that were so essential in maintaining a connection between them and the gods and heavens.
- Abacus – The Aztec and Maya of Mesoamerica performed arithmetic operations using an abacus. It served as a more accurate and faster alternative to a written solution or relying on memory. Archaeologistshe have recorded the Mesoamerican abacus, or Nepohualtzintzin, as being present in Mesoamerica from at least between 900 and 1000 CE.[19]
Sports
[edit]- Rubber ball: Before 1600 BCE by the Olmec for uncertain purposes and later used by the Mayan and Aztec for ball games.
- Mesoamerican ballgame: Played differently by the Mayan and the Aztec, it is believed to be one of the first ball games, if not the first.
- Pelota purépecha
- Pelota mixteca
- Xhupa Porrazo: A form of wrestling and martial arts training developed by the Zapotec people. It is still practiced today mainly in Oaxaca Mexico.
- Boxing: The Maya practiced a form boxing in which they wore conch shells as gloves and wooden helmets.
- Gladiatorial combat: The Aztecs practiced a form of gladiatorial rite that served as an spectator sport and holy ritual.
Behavioral products
[edit]- Chewing gum ancient Aztecs used chile as a base for making a gum-like substance and to stick objects together in everyday use. Women, in particular, used this type of gum as a mouth freshener.
- Tobacco smoking[20]
- Smoking pipe:indigenous Americans invented the smoking pipe and in particular the ceremonial pipe a type of tobacco pipe. This was an unknown concept to Europeans and the idea was adopted by them and was shortly thereafter brought to the Chinese.
Chemical
[edit]- Processing of rubber latex as rubber: Although vulcanization with heat or sulfur was neither known nor practised, mesoamerican peoples used the juice of the morning glory vine to similarly cross-link raw rubber and make it usable.[21]
Social
[edit]- Universal education: The Aztecs were the first civilization known to have introduced compulsory education for both boys and girls.[22]
- Writing system:Many indigenous American cultures, such as the Olmec, Maya, Aztec, Zapotec, and Toltec, developed writing systems.
Commerce
[edit]- Tianguis: the open air market, considered to have been a direct influence on today's flea market.
Alcoholic beverages
[edit]- Pulque
- Agave wine – This wine is made from the same plant, blue agave, as is tequila, but with a lower alcohol content.
Health and hygiene
[edit]- Sauna: The temazcal was the first ever sweat lodge, used by many cultures in Mesoamerica.
Astronomy
[edit]- Mesoamerican cultures, such as the Maya and Aztec, were able to accurately predict astronomical events, like eclipses, hundreds of years into the future.[23]
Colonial
[edit]Industrial
[edit]- Automated cigarette machine: invented by Juan Nepomuceno Adorno in 1846.
- Ballcock: Invented by José Antonio de Alzate y Ramírez in 1790.
- Flattop grill: originated in 19th century Mexico and Central America.
Economy
[edit]- Coin lathe:Developed in 1774 by José Damián Ortiz de Castro.
- Real de a 8, also known as "Spanish American peso", "Spanish dollar" or "piece of eight", considered to be the first world currency, which also gave the origin of the dollar or peso sign ($), was a Spanish/Mexican invention, it was first used in New Spain before being widely used in the whole Americas, parts of Europe and the Far East. It also provided the model for the currency that the United States adopted in 1792 and the larger coins of the new Spanish American republics such as the Mexican peso and the Philippine peso in Southeast Asia.
Food
[edit]Music and musical instruments
[edit]- Pirekua
- Corridos
- Ranchera
- Mariachi: originated in Guadalajara.
- Jarabe Tapatío
- Vihuela, a five string musical instrument.
Alcoholic beverages
[edit]- Mezcal.
- Rompope, an alcoholic beverage made with eggs, milk, and vanilla flavouring, originated in the convents of Puebla de los Ángeles.
- Tequila.
Sports
[edit]Fashion
[edit]Ranching and farming
[edit]- Hacienda, Spanish/Mexican invention.
Chemical
[edit]- Patio process: For removal of silver from ore.
- Vanadium: Achemical element discovered by Spanish chemist Andrés Manuel del Río.
- Ursolic acid: Discovered by Dr. Leopoldo del Rio de la Losa in 1841.
Modern
[edit]Construction and civil engineering
[edit]- Translucent concrete (ILum): developed by students Joel Sosa Gutierrez and Sergio Galvan in 2005.
- Tridilosa: invented by civil engineer Heberto Castillo.
- Anti-graffiti coating (Deletum 3000): developed in the early 2000s at UNAM’s Applied Physics and Advanced Technology Centre in Querétaro Mexico.
- Earthquake Resistant Foundations: invented by engineer Manuel González Flores in 1945.
- Continuous-flow intersections were first invented by Mexican engineer Francisco Mier.[24]
- Breakwater (structure): engineer Mauricio Porras developed a way to build docks and wave breakers using bags filled with sand or concrete and arranging them in 6' by 19' configurations in 1996. Thus creating a cheaper more material effective way of building these structures.
Chemical
[edit]- Sponge iron reaction (HYL process): created by Hylsa (now Ternium) of Mexico in 1957.
- Solid rain (Lluvia sólida): invented by chemical engineer Sergio Jesús Rico Velasco, it consist of a farming additive that cuts down on irrigation needs by employing hydrogel.
Antidotes
[edit]- Scorpion antivenom, developed by Alejandro Alagón Cano in 1994.
- Coralmyn, one of several antivenoms created by the Instituto Bioclon
Pharmaceutical
[edit]- Synthesized Norethisterone: This achievement by Luis E. Miramontes allowed the development of the first three Combined oral contraceptive pill, better known as the "morning after pill". He is sometimes referred to as "the Father of the Pill".
Automotive
[edit]- Mastretta MXT car
- VUHL car
- Solana (automobile)
- Vehículos Automotores Mexicanos
- Lowrider
- LTH brand car batteries and fluids. This company was established in 1928 by Luis T. Hernández Terrazas.
Transport
[edit]- Dynamic braking:invented by Victor Leaton Ochoa in 1908.
- Jetpack:Invented by pilot & inventor Juan Manuel Lozano Gallegos.
Aviation
[edit]- Hélice Anáhuac (Propeller Anáhuac): invented by engineer Juan Guillermo Villasana López in 1915.
- Villasana Series H (TNCA H)
Firearms
[edit]- Zaragoza Corla
- Trejo pistol
- Obregón pistol
- Mendoza RM2, created by Rafael Mendoza Blanco
- Mendoza HM-3
- Mendoza C-1934
- FX-05 Xiuhcoatl rifle
- M1908 rifle: The world's first gas-operated semi-automatic rifle. It was used for a short time by the Germans in World War I. Invented by Manuel Mondragon.
- Saint-Chamond-Mondragón.
- Mexican Mauser Model 1954
- Mexican Mauser Model 1936
Military technology
[edit]- DN-V Bufalo
- Sierra class corvette
- Durango class
- Oaxaca class
- Hydra Technologies Ehécatl
- Hydra Technologies Gavilán
- Oaxaca PE-210A Pegasus
Music and musical instruments
[edit]- Quebradita
- Sonido 13: Developed around 1900 by Julián Carrillo, his theories have been used to analyse conscience altering techniques by investigator Robert Alan Monroe, and even using sound as health treatment.
- Son mexicano
- Banda music
- Guitarrón mexicano
- Guitarra panzona
- Tribal guarachero
Fashion
[edit]Art
[edit]- Alebrije:invented in the 1930s by cartonero Pedro Linares.
Food
[edit]- Flamin' Hot popcorn:invented by then janitor Richard Montañez.
- Fritos: Invented in 1932 by Gustavo Holguín, he sold the recipe for fritos to the company Highland park confectionery for $100.
- Fajita
- Snow cone
- Japanese peanuts: by Japanese immigrant Yoshigei Nakatani in 1945
- Nachos: By Ignacio Anaya. Nacho is short for Ignacio.
- Caesar salad
- Quesabirria
- Refried beans
- Huarache (food)
Games and celebration
[edit]- Maratón board game:invented by Sergio Etchart Sabbath in 1985.
- piñata
- Three-card Monte[25]
Dog breeds
[edit]- Chamuco (a Mexican word which means "devil") or Mexican Pitbull: The breed was developed in central Mexico in the 1970s.
- Calupoh
Alcoholic beverages
[edit]Modern technologies
[edit]- Google (architecture): heavily influenced by the work and research of professor Hector Garcia Molina.
- mousepad: invented by Armando M Fernandez.[26]
- InstaBook: developed in 1997 by Victor Celorio.
- Early color television: Guillermo González Camarena made one of the earliest successful color television transmission systems in 1934. Although not the one used today, NASA used it in 1979 for a series of projects including Voyager 1.
- AcceleGlove: invented by José Hernández-Rebollar. It is an electronic glove that translates hand movements from the American Sign Language into spoken and written words.
- GNOME: developed by Miguel de Icaza and Federico Mena.
- X-ray microscope: developed by Paul Kirkpatrick and Albert Baez.
- Mochila de seguridad (security backpack): developed by primary school student Juan David Hernandez Rojas in response to the growing violence in his home town of Matamoros, Tamaulipas, his invention consists of a backpack lined up with bullet proofed material, security lights, an alarm, and a GPS tracking device that can be connected to the wearers' families phones.
- Solid-state melanin battery: developed by scientist Arturo Solis Herrera, it consists of a solar battery that does not need to be recharged or reloaded.
- Optical ranked-order filtering using threshold decomposition: developed by Dr. Ellen Ochoa.
- Electronuclear reactor: developed by Luis Walter Alvarez.[27]
- 3D Robotics: Founded in 2009 by Chris Anderson and Jordi Muñoz.
Communications
[edit]- SkyAlert: A mobile app that notifies users of possible seismic activity.
- Beelinguapp: An app that teaches languages through story telling.
- Tevi: An app that works as an electronic wallet.
Sports
[edit]Political
[edit]- Recurso de amparo (Writ of protection) idea, which was fundamental in the creation of the Universal Declaration of Human Rights
- Election ink: Developed by Filiberto Vázquez Dávila.[28]
Industrial
[edit]- Tortilla machine Created by Everardo Rodríguez Arce and Luis Romero in 1904 and produced 16,000 tortillas a day In 1947.[29]
Medical
[edit]- Assisted ventilation or Mechanical ventilation device (Gätsi ventilator) developed by Dydetec in 2020 to cope in the COVID-19 pandemic[30]
- EVA bra: Developed in 2017 by student Julian Rios Cantu at Monterrey Institute of Technology and Higher Education.
- Probionics S.A. de C.V: founded in 2008 by Luis Armando Bravo Castillo, his company produces prosthetic limbs at %90 less cost than other companies.
- VITACOR UVAD artificial heart: Developed by Dr. Emilio Sacristan Rock.
- Method for predicting fetal membrane rupture based on pro-matrix metalloproteinase-9 (pro-mmp-9): Developed by Biochemist Felipe Vadillo-Ortega.
- Diagnostic methods to detect invasive amoebiasis: Developed by Dr.María del Socorro Flores González.
- Catalytic nanomedicine: A new field in antitumor treatment using supported platinum nanoparticles:Developed by solid-state chemist Tessy María López Goerne.
- Typhus vaccine: Developed by Dr. Maximiliano Ruiz Castañeda in 1940.
Discoveries
[edit]- Alcubierre drive a theory in which a spacecraft could achieve possible faster-than-light travel Proposed by Mexican theoretical physicist Miguel Alcubierre.
- Mexianthus: One of many plant species discovered and classified by botanist Ynes Mexia.
- Intensity of cosmic rays related to latitude and Earth's magnetic field:Discovered by Dr.Manuel Sandoval Vallarta and physicist Georges Lemaître.
- Recombinant DNA molecule:discovered by Lydia Villa-Komaroff.
- Herbig–Haro objects, discovered by Mexican Guillermo Haro and American George Herbig
- Ozone depletion: Mario J. Molina together with F. Sherwood Rowland discovered the CFCs role in the Ozone hole. They were awarded the Nobel Prize in Chemistry.
- Vanadium: discovered in 1801 by Andres Manuel del Rio
- Birth control pill Developed by Luis E. Miramontes in Tepic, Mexico in 1951.[31]
- Labocania, Huehuecanauhtlus, Acantholipan.
References
[edit]- ^ Sharer, Robert (2006). The Ancient Maya. Stanford University Press. p. 127. ISBN 9780804748179.
maya almanac origin.
- ^ Walker, C. 1980, p. 162.
- ^ Coe, M. 2008, p. 193.
- ^ Şentürk, Fuat (1994). Hydraulics of Dams and Reservoirs. Water Resources Publication. p. 6. ISBN 978-0-918334-80-0.
- ^ "Ancient Mayans Likely Had Fountains and Toilets". Live Science. December 23, 2009.
- ^ Murrin, John (2014). Liberty, Equality, Power: A History of the American People Sixth Edition. Wadsworth Cengage Learning. p. 17. ISBN 978-0495904991.
- ^ Aveni, Anthony F., Gibbs, Sharon L., Hartung, Horst (June 1975). "The Caracol Tower at Chichen Itza: An Ancient Astronomical Observatory?". Science. 188 (4192): 977–985. Bibcode:1975Sci...188..977A. doi:10.1126/science.188.4192.977. PMID 17759669. S2CID 10865295.
{{cite journal}}
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- ^ Hosler 1988, Pendergast 1962.
- ^ Encyclopedia of American Indian Contributions to the World
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- ^ "Transoceanic drift and the domestication of African bottle gourds in the Americas", Kistler et al, Proceedings of the National Academy of Sciences, February 10, 2014.
- ^ "UF researchers discover earliest use of Mexican turkeys by ancient Maya". EurekAlert!. August 8, 2012.
- ^ Emory Dean Keoke (2002), Encyclopedia of American Indian Contributions to the World: 15,000 Years of Inventions and Innovations, Checkmark Books, ISBN 9781438109909
- ^ Phillips, Charles "The Complete Illustrated History of the Aztec & Maya: The Definitive Chronicle of the Ancient Peoples of Central America & Mexico – Including the Aztec, Maya, Olmec, Mixtec, Toltec & Zapotec" 2015.
- ^ Ortiz de Montellano, Bernard. (1975). Empirical Aztec Medicine. Science. 188. 215-20. 10.1126/science.1090996.
- ^ "The Prehispanic Computer? The Nepohualtzintzin". Chispa Magazine. September 1986.
- ^ [2]. Manufacturing: A Historiographical and Bibliographical Guide. Retrieved February 2015.
- ^ Halber, Deborah (July 14, 1999), Rubber processed in ancient Mesoamerica, MIT researchers find, MIT News
- ^ [3]. Top 5 Ancient Aztec Inventions. Retrieved February 2015.
- ^ Kramer, Miriam (January 2013). "Ancient Maya Predicted 1991 Solar Eclipse". Live Science.
- ^ "Alternative Road Design: Here's How a Continuous Flow Intersection WorksIntersection". August 9, 2016.
- ^ Encyclopedia of the American West. Retrieved February 2015.
- ^ "CRT Cursor Control Mechanism Pad". Xerox Disclosure Journal. November–December 1979. Retrieved 2020-07-23.
- ^ Lawrence, E. O., McMillan, E. M., & Alvarez, L. W. (1960). Electronuclear Reactor (No. US 2933442).
- ^ "What's behind Mexico's indelible ink?". euronews. 2018-07-02. Retrieved 2023-07-07.
- ^ [4].Chronicles of Bernal Díaz del Castillo, Manuel Villagómez, TIA and Tortilla Topics
- ^ [5] CONACYT informe
- ^ [6]. Vision learning