
1088: Three Chambers
Thanksgiving History, Sarah Hale and Abraham Lincoln
The modern American Thanksgiving was officially codified by Abraham Lincoln in 1863 following a campaign by writer Sarah Hale. The holiday was originally intended to celebrate the Union victory at Gettysburg rather than the legendary 1621 pilgrim feast, which was a one-time event modeled on the British "Harvest Home." Franklin Roosevelt briefly moved the date to extend the Christmas shopping season before it was returned to the fourth Thursday of November.

