- Dec 1 NY Yankees and Baltimore Orioles complete largest trade in MLB history as 17 players, including Don Larsen, Gene Woodling, Bob Turley change teams; first phase of transaction began November 18 and concludes today after the MLB draft
- Dec 2 Milwaukee Hawks shooting guard Frank Selvey sets then NBA record of 24 of 26 free throws as he scores 42 points in 117-108 win over the Minneapolis Lakers at Milwaukee Arena
- Dec 10 Philadelphia Phillies purchase Connie Mack Stadium
- Dec 11 Philadelphia Phillies owners reluctantly purchase Connie Mack Stadium (Shibe Park) from the A's
- Dec 26 National Football League Championship, Cleveland Municipal Stadium: Cleveland Browns thrash Detroit Lions, 56-10; Browns' placekicker Lou Groza makes 8 extra points, a new title game record
- Dec 28 43rd Davis Cup: USA beats Australia in Sydney (3-2)
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