In which city was the American Declaration of Independence formally adopted by the Continental Congress on July 4, 1776?

Explanation

The Second Continental Congress met at the Pennsylvania State House, now known as Independence Hall, in Philadelphia. It was here that the delegates formally adopted the Declaration of Independence on July 4, 1776. This historic document announced that the thirteen American colonies regarded themselves as independent sovereign states, no longer under British rule, marking the official beginning of the United States as a nation.