The name is derived from a patron saint of a local church Sancta Maria, mentioned for the first time as villa Sancti Marie. Today's name is an adaptation of the original name: Zent Maria – Samaria – Somoria – Šamorín.
The oldest artifacts indicating the settlement of the area are dated to the Neolithic and Eneolithic Period. The settlement of the location is documented also for the Bronze Age and the Iron Age. Later archaeologic research uncovered artifacts from the Early and High Middle Ages. After the Mongol invasion, the village was settled by German "guests" who had the leading role in the town administration. The German minority was given a royal privilege to apply Pressburg Law and lived in the town until the end of the Middle Ages. The presence of other ethnic groups like Pechenegs and Székelys is also documented. The settlement was a prominent port on the Danube during the Middle Ages and the market center of Rye Island. Agriculture also played a major role in the town's development. As a result of this prosperity, its citizens enjoyed a brisk trade in the new technologies and many shipyards on the Danube. However, with rise of Pressburg, the importance of the town began declining. Šamorín eventually lost its right to the status of royal free city granted in 1405 during the reign of Hungarian King Sigismund. In the sixteenth century, the city became notable again because of the witch trials held there. After the Austro-Hungarian army disintegrated in November 1918, Czechoslovak troops occupied the area, later acknowledged internationally by the Treaty of Trianon. Between 1938 and 1945 Šamorín once more became a part of Hungary under Miklós Horthy through the First Vienna Award. From 1945 until the Velvet Divorce, it was part of Czechoslovakia. Since then it has been part of Slovakia.
Demography
According to the 2014 census, the municipality had 13,028 inhabitants. In 2011 7,309 of the inhabitants were Hungarians, 4,365 Slovaks, 63 Czechs and 989 others and unspecified.
In 1910, the town has a total population of 2,930, which included 2,699 Hungarians, 112 Germans and 114 Slovaks. According to the 1991 census, ethnic groups included 71% Hungarians and 27.4% Slovaks.
According to the 2001 census, ethnic groups included 66.63% Hungarians and 30.96% Slovaks. The religious make-up was 75.27% Roman Catholics, 4.42% Protestant, 11.75% without denomination and others.
