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I don't have sufficient context to write an accurate overview of "1648." The context provided only indicates it's a year, but doesn't explain what historical event, work, concept, or subject matter you're referring to. Could you provide more information about what "1648" specifically refers to?
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October 24: The Peace of Westphalia is signed, ending the Thirty Years' War.
August 20: The French Army defeats the Spanish Army at the Battle of Lens 1648 (MDCXLVIII) was a leap year starting on Wednesday of the Gregorian calendar and a leap year starting on Saturday of the Julian calendar, the 1648th year of the Common Era (CE) and Anno Domini (AD) designations, the 648th year of the 2nd millennium, the 48th year of the 17th century, and the 9th year of the 1640s decade. As of the start of 1648, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.