Lincoln's Birthday is a legal holiday in some U.S. states including California, Connecticut, Illinois, Missouri, New Jersey, New York, and Indiana. It is observed on the anniversary of Abraham Lincoln's birth on February 12, 1809.

The earliest known observance of Lincoln's birthday occurred in Buffalo, New York, in 1874. Julius Francis (d. 1881), a Buffalo druggist, made it his life's mission to honor the slain president. He repeatedly petitioned Congress to establish Lincoln's birthday as a legal holiday.^[1]