Simplify the following text for a Grade 10 native English-speaking person.
Original: The 1976 Winter Olympics , officially known as the XII Olympic Winter Games , were a winter multi-sport event which was celebrated February 4 â `` 15 , 1976 in Innsbruck , Austria .
Simplified: The 1976 Winter Olympics , officially known as the XII Olympic Winter Games , were celebrated in 1976 in Innsbruck , Austria .