The United States Semiquincentennial Commission was sworn in and organized in Philadelphia in 2018.
The ceremony and first organizing meeting took place at Independence Hall on November 16, 2018. Philadelphia was selected because of its central role in the founding period: the Second Continental Congress met there, the Declaration of Independence was adopted there, and the Constitutional Convention met there in 1787.
Philadelphia’s connection to America250 extends beyond the commission. The city is home to Independence National Historical Park, which preserves Independence Hall, the Liberty Bell, and other sites connected with the Revolution and early national government.
Boston, New York City, and Charleston are also identified with major events in the American Revolution and were designated among the leading cities for semiquincentennial activities. However, the commission’s 2018 swearing-in and organizing meeting occurred in Philadelphia, making it the specific answer.