Serock is a town at the north bank of the Zegrze lake in the Legionowo County, Masovian Voivodeship, Poland, around 40 kilometres north of Warsaw.
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Between 1113 and 1124, Serock was mentioned in a list as one of the most important princely castles of Mazovia, which operated a river crossing with a customs house.
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In 1417, Serock was granted town rights under Chelmno law by Janusz I of Warsaw.
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Serock was a royal town of the Polish Crown, administratively located in the Masovian Voivodeship in the Greater Poland Province of the Polish Crown.
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Serock repeatedly was on the battle lines on the outskirts of Warsaw, including in 1794,1809 and 1831.
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In September 1939, Serock was a place of fighting between the Poles and the invading Germans during the Invasion of Poland, which started World War II.
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Under German occupation, Serock was annexed directly to the Third Reich, and the boundary between the Third Reich and the General Government proceeded along the Narew river.
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In 1963 the Zegrze Reservoir was formed, and Serock developed as a popular vacation destination for inhabitants of nearby Warsaw.
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Serock is at an intersection of national roads 61 and 62 which has bus connections but no railway connections.
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