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Treason of the Blackest Dye: The true story of Arnold, André, and Three Honest Militiamen

Sunday, September 28, 2025 10:00 AM - 05:00 PM

This temporary exhibit, originally developed by Revolutionary Westchester 250 and based on new research, takes a deep dive into the people and events behind Benedict Arnold's treason and the capture and execution of British Major John André. Access included with museum general admission. Learn more at https://www.philipsemanorhall.com/programs-and-events/temporary-exhibit-treason-of-the-blackest-dye.
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