As part of America’s 250th birthday, some original founding-era documents are leaving Washington, D.C. together for the first time ever to go on a historic 8-city tour. Here are the details.

A Freedom Plane carrying treasures from the National Archives is making its way across the country.

Feb. 1, 1865, marked a pivotal moment in the history of the United States, when President Abraham Lincoln signed the joint resolution proposing the 13th Amendment to the Constitution, formally ...