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September 8: The Dutch city of New Amsterdam, capital of the colony of New Netherland, is surrendered to invading English Army troops, who rename the city and the colony "New York" for The Duke of York.
August 1: Battle of Saint Gotthard 1664 (MDCLXIV) was a leap year starting on Tuesday of the Gregorian calendar and a leap year starting on Friday of the Julian calendar, the 1664th year of the Common Era (CE) and Anno Domini (AD) designations, the 664th year of the 2nd millennium, the 64th year of the 17th century, and the 5th year of the 1660s decade. As of the start of 1664, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.