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April 30: The Dutch Republic recaptures the fortress of Schenckenschans from the Spanish after a costly nine-month siege. October 4: Sweden defeats the Holy Roman Empire in the Battle of Wittstock
1636 (MDCXXXVI) was a leap year starting on Tuesday of the Gregorian calendar and a leap year starting on Friday of the Julian calendar, the 1636th year of the Common Era (CE) and Anno Domini (AD) designations, the 636th year of the 2nd millennium, the 36th year of the 17th century, and the 7th year of the 1630s decade. As of the start of 1636, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.