2018 Siege of Fort Mifflin Reenactment Relive history at the 241st Anniversary of the Siege of Fort Mifflin Reenactment on November 10-11, 2018 at Fort Mifflin in Philadelphia, Pennslyvania. Experience the battle that defined Fort Mifflin at its annual flagship event! The Siege of Fort Mifflin Reenactment includes four full scripted battles tell the story [read more]