Jimi Hendrix, 24, in his breakout set at Monterey in 1967.

The Exotic Vest That Introduced America to Jimi Hendrix

The fashionable garment conjures the guitarist's dazzling performance at the Monterey County Fairgrounds

Tickets to the Johnson impeachment trial were color-coded to indicate dates for the proceedings, which lasted more than two months.

The Fight Over Andrew Johnson's Impeachment Was a Fight for the Future of the United States

The biggest show in Washington 150 years ago was the trial against the President of the United States

President Grant gave the pen he used to sign the 15th Amendment to a fellow Civil War veteran, Herbert Preston.

What a Simple Pen Reminds Us About Ulysses S. Grant's Vision for a Post-Civil War America

President Grant’s signature on the 15th Amendment was a bold stroke for equality

loading icon