|Municipality||Šalčininkai district municipality|
|Capital of||Eišiškės eldership|
|Granted city rights||1950|
|Time zone||EET (UTC+2)|
|• Summer (DST)||EEST (UTC+3)|
Eišiškės ( pronunciation (help·info), Polish: Ejszyszki, Russian: Эйши́шки/Eishishki, Belarusian: Эйшы́шкі/Eishyshki, Yiddish: אײשישאׇק/Eyshishok) is a city in southeastern Lithuania on the border with Belarus. It is situated on a small group of hills, surrounded by marshy valley of Verseka and Dumblė Rivers. Rivers divide the town into two parts; the northern part is called Jurzdika. As of January 2008, Eišiškės had a population of 3,610. It has a small hospital and two high schools (one for Polish and another for Lithuanian students).
According to Yaffa Eliach, "Local Jewish folklore had its own account of how the name of the town came into being: Once upon a time in the early days of the shtetl, a man came home and was greeted by his wife with a special treat of freshly cooked varenie (preserves), made from the berries that grow in such abundance in the region. Not realizing they were still sizzling hot, he took a big bite and scorched his tongue, which caused him to yell "Heishe-shok!" (Hot sauce!) at the top of his lungs." 
Eišiškės is mentioned for the first time in the Treaty of Königsberg (1384) between Vytautas the Great and the Teutonic Knights. East of the town there is a castle site, dating back from the 14th–15th centuries. Historian Ignas Jonynas argued that Anna, Grand Duchess of Lithuania and wife of Vytautas the Great was a sister of Sudimantas, a nobleman from Eišiškės and commander of Vytautas' army. An important route, connecting Vilnius, Hrodna, and Warsaw, ran through the town. Protected by the castle and boasting a church built by Vytautas, the town became one of the important trading centers in the Grand Duchy of Lithuania. It had a court and here nobles gathered for a sejmik.
Eišiškės was sacked and burned in 1655 during the Muscovite invasion and in 1706 during the Great Northern War. The town lost majority of inhabitants and lost its former status as a trade center. At the end of the 17th century, in hopes to revive the economy Eišiškės were granted Magdeburg rights and became known for its horse and cattle markets. The former market square and surrounding streets are protected as urban heritage since 1969. The town's importance decreased after the partitions of the Polish–Lithuanian Commonwealth, especially after it was sacked during the French invasion of Russia. However, the town grew rapidly following the Uprising of 1863 and abolition of serfdom. After few devastating fires, residents started constructing brick buildings. The town continued to be known for its markets and for its carriages. Eišiškės was part of the Nowogródek Voivodeship of the Second Polish Republic during the interwar years. During World War II, the town witnessed some fighting between Polish Armia Krajowa, Nazi Wehrmacht, and Soviet Red Army.
According to Jewish sources, there were tombstones dating from as early as 1097 at the former Jewish cemetery, making Eshishok one of the oldest Jewish settlements in Eastern Europe. In the 18th century, the Jewish population accounted for about half of the population, and as the town grew, the proportion of Jewish residents increased, hitting a peak of 80% in 1820. Jews dominated trade and crafts: in 1935 out of 117 enterprises, 106 belonged to Jews.
German troops arrived in Eišiškės on June 23, 1941, and on September 21, 1941, an SS Mobile Killing Squad entered the town, accompanied by Lithuanian auxiliaries. More than four thousand Jews from Eishishok and its neighboring towns and villages were first imprisoned in three synagogues and then taken in groups of 250 to the old Jewish cemetery where SS men ordered them to undress and stand at the edge of open pits. There, Lithuanian auxiliary troops shot them to death. The old cemetery is now a site of remembrance with a memorial stone in three languages. The new cemetery was destroyed in 1953 and turned into the yard of a kindergarten. Some of the private Jewish buildings survive and are protected as part of the urban heritage. One school is now a library, while another was demolished.
Up to the Holocaust, Jews formed a majority in the town. Today Poles form a majority: they constitute some 80% of the population within the Šalčininkai district municipality. Eišiškės also have a small community of Romani people, numbering some 34 families. It dates from at least 1780 when Stanisław August Poniatowski appointed a certain Znamirowski as community's elder. In 2001, in Eišiškės 42 students of Roma descent received financial assistance from an education fund.
The first church was probably built in 1398 by Vytautas the Great. It was one of the first churches built in Lithuania after the Christianization of Lithuania in 1385. It is suggested that the church was burned during the Lithuanian Civil War (1431–1435). It was rebuilt on another site. About 1500 a second church was built in the southern part of the town. Likely both churches burned down during the Muscovite invasion. A small poor church was rebuilt, but before it could be improved it was burned by the Swedes. In 1707 a wooden church was built with a two-story tower and three-story belfry. By the 1770s it was falling apart and needed reconstruction. The construction included the rectory and a wooden parish school. In 1845 a plan was drafted by historian Teodor Narbutt for a new brick church in neoclassical style. The construction was finished in 1852 and the church preserves its basic design to this day. The church, built of field stones, has a portico with six Doric columns. It is accompanied by a four-story belfry with a Baroque cap. The church lost its tower. The plain exterior is contrasted with the interior, decorated in light Baroque style. Three paintings, housed in the church, are protected as monuments of national importance.
The first school, attached to the church, was established in 1524. It was one of the first schools in Lithuania. A seven-year school was established in 1921, but up until 1938 it did not have a separate building and had to rent rooms from private individuals. Before the new school building could properly open, World War II began and Germans seized the building and established a command post. The school was bombed and suffered large damage. After the war the school was rebuilt and classes commenced in three languages: Russian, Polish, and Lithuanian. As the number of students grew, an extension was built in 1967. Russian school moved out in 1983 and Lithuanian in 1992. In 2006, the Polish school earned the name of Eišiškės Gymnasium and had 602 students and 79 teachers. The Lithuanian school, named after Stanislovas Rapalionis, had 460 students in 2006. The Russian "Viltis" school was attached to the Lithuanian school.
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