America 250
Celebrating the Nation's Semiquincentennial in 2026
In 2026, the United States will celebrate its semiquincentennial, marking the 250th anniversary of the signing of the Declaration of Independence.
This historic milestone will be marked by nationwide events and commemorations. Among the key anniversaries leading up to this moment is the 250th anniversary of the U.S. Navy and Marines in 1775.
Homecoming 250
Celebrating the 250th Anniversary of the U.S. Navy and Marines
Upcoming Exhibit
"To Provide a Naval Armament:"
U.S. Navy & Marine Corps History, 1775 – 1958
On view October 8, 2025 to December 12, 2025
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Philadelphia gave birth to the U.S. Navy twice—first in 1775 and again in 1794. The later Navy reflected the young nation: ships designed by Quakers, built in shipyards along the East Coast with wood harvested by enslaved people, led by white officers, and crewed by a diverse mix of nationalities, ethnicities, and religions. The Marines of both eras laid the foundation for one of the world's elite fighting forces.​
While prominent Philadelphians appear in naval history, the story also lives in the letters and journals of sailors, surgeons, and shipyard workers. In partnership with Homecoming 250, "To Provide a Naval Armament:" U.S. Navy & Marine Corps History, 1775–1958 explores the Navy and Marine Corps through the Historical Society of Pennsylvania’s collections, tracing their evolution from the American Revolution to the early Cold War, all while remaining anchored in Philadelphia.