The event that Americans commonly call the “First Thanksgiving” was celebrated by the Pilgrims after their first harvest in the New World in October 1621. This feast lasted three days, and—as recounted by attendee Edward Winslow— was attended by 90 Native Americans and 53 Pilgrims. The New England colonists were accustomed to regularly celebrating “thanksgivings” days of prayer thanking God for blessings such as military victory or the end of a drought. Thanksgiving has been celebrated nationally on and off since 1789, with a proclamation by President George Washington after a request by Congress. President Thomas Jefferson chose not to observe the holiday, and its celebration was intermittent until President Abraham Lincoln, in 1863, proclaimed a national day of “Thanksgiving and Praise to our beneficent Father who dwelleth in the Heavens”, to be celebrated on the last Thursday in November. On June 28, 1870, President Ulysses S. Grant signed into law the Holidays Act that made Thanksgiving a yearly appointed federal holiday in Washington D. C. On January 6, 1885, an act by Congress made Thanksgiving, and other federal holidays, a paid holiday for all federal workers throughout the United States. Under President Franklin D. Roosevelt, the date was changed between 1939 and 1941 amid significant controversy. From 1942 onwards, Thanksgiving, by an act of Congress, signed into law by FDR, received a permanent observation date, the fourth Thursday in November, no longer at the discretion of the President.