The Fourth of July—also known as Independence Day or July 4th—has been a federal holiday in the United States since 1941. The tradition of Independence Day celebrations goes back to the 18th century and the American Revolution.| HISTORY
The 13th Amendment to the U.S. Constitution, which abolished slavery, passed in Congress during the Civil War before being ratified in late 1865.| HISTORY
History Shorts: Who Wrote the U.S. Constitution?| HISTORY