The United States House of Representatives, commonly known as the lower chamber of the United States Congress, along with the United States Senate, commonly known as the upper chamber, are the two parts of the legislative branch of the federal government of the United States. Like its counterpart, the House was established by the United States Constitution and convened for its first meeting on March 4, 1789, at Federal Hall in New York City. The history of this institution begins several years prior to that date, at the dawn of the American Revolutionary War.