December 17 is the 351st day in the Gregorian calendar. On this day, the first Saturnalis festival was celebrated in Rome, the first issue of Vogue was published, and the United States Air Force closed its Project Blue Book study of UFOs. Famous birthdays include Pope Francis, Sarah Paulson, and Milla Jovovich. December 17 also marks National Maple Syrup Day.

We have 1 holiday listed for December 17.