Independence Hall hosted both the Declaration debate in 1776 and the Constitutional Convention in 1787.
The Philadelphia building was originally called the Pennsylvania State House. The Second Continental Congress met there when it adopted the Declaration of Independence on July 4, 1776. Delegates debated and approved the document in the building's Assembly Room.
From May 25 to September 17, 1787, Independence Hall hosted the Constitutional Convention. Delegates initially gathered to consider changes to the Articles of Confederation, but they ultimately drafted an entirely new Constitution. The convention's final document was signed in the same building on September 17, 1787.
The building became known as Independence Hall because of its connection to the independence movement. It is part of Independence National Historical Park in Philadelphia and became a UNESCO World Heritage Site in 1979. The shared location makes it a particularly important physical link between the 1776 founding document and the 1787 governing framework commemorated by America250.