There's a stillness about it that will mesmerize you.
During the American Revolutionary War, the British Army bombarded and captured the fort as part of their conquest of Philadelphia in autumn 1777. In 1795 the fort was renamed for Thomas Mifflin, a Continental Army officer and the first post-independence Governor of Pennsylvania. The United States Army began to rebuild the fort in 1794 and continued to garrison and build on the site through the 19th century. It housed prisoners during the American Civil War. And it also played a role in both world wars. The army decommissioned Fort Mifflin for active duty infantry and artillery in 1962.