Here are just some of the notable sports moments that happened on December 12:

1937 — The Washington Redskins beat the Chicago Bears, 28­-21, in the NFL Championship Game at Wrigley Field. (More info.)

1951 — Joe DiMaggio of the New York Yankees announced his retirement at age 37. (More info.)

1965 — Gale Sayers of the Chicago Bears scored an NFL record-tying six touchdowns in a 61-­20 demolition of the San Francisco 49ers. (More info.)

1968 - Arthur Ashe became the first African-American man ranked No. 1 in the U.S. in tennis. (More info.)

1995 — NBC paid $2.3 billion for the American rights to the 2004, 2006 and 2008 Olympics, then the largest sum for sports events in the history of television rights. (More info.)