We have 1 holiday listed for December 11.
December 11 is the 345th day in the Gregorian calendar. On this day, Indiana became the 19th state in the U.S., co-founder of Alcoholics Anonymous Bill Wilson took his final drink, and Apollo 17 become the final Apollo mission to land on the Moon. Famous birthdays include John Kerry, Hailee Steinfeld, and Osho. December 11 also marks International Mountain Day.