- Dec 1 MLB announces attendance for the season is 20.2 million, down from 20.9 in 1948; New York Yankees and the Cleveland Indians each finish with over 2.2 million, but the St. Louis Browns fall to 270,000
- Dec 1 WBNG TV channel 12 in Binghamton, NY (CBS) begins broadcasting
- Dec 1 WKTV TV channel 2 in Utica, NY (NBC) begins broadcasting
- Dec 3 14th Iron Bowl: Auburn beats Alabama 14-13 in Birmingham
- Dec 3 KRLD (now KDFW) TV channel 4 in Dallas-Fort Worth, Texas (CBS) begins broadcasting
- Dec 4 Bob Gage ties NFL record of a 97 yard touchdown run
- Dec 4 Duncan Stewart, 2nd British Governor of Sarawak is fatally stabbed in the streets of Sibu by Malay student Rosli Dhoby with help from Morshidi Sidek with the goal of helping neighbouring Indonesia to take over British Sarawak
- Dec 7 15th Heisman Trophy Award: Leon Hart (end), Notre Dame
Chiang Kai-shek Flees
Dec 7 Chinese Nationalist leaderChiang Kai-shek flees to Taiwan
On the Town
Dec 8 "On the Town", the film adaptation of the Broadway musical, starringGene Kelly,Frank Sinatra, Ann Miller andVera-Ellen, premieres
- Dec 8 Chinese Nationalist government moves from Chinese mainland to Formosa
Gentlemen Prefer Blondes
Dec 8Jule Styne and Leo Robin's musical "Gentlemen Prefer Blondes", starring Carol Channing, opens at Ziegfeld Theater, NYC; runs for 740 performances
- Dec 9 House of Representatives of The Netherlands accepts Indonesian sovereignty
- Dec 9 NFL merges with AAFC; Cleveland Browns, San Francisco 49ers & Baltimore Colts join league intact, other teams in New York and Los Angeles are merged with existing units
- Dec 11 Chicago Bear Johnny Lujack passes for 6 touchdowns vs Chicago Cards (52-29)
- Dec 11 Cleveland Browns beat SF '49ers 21-7 in final AAFC championship game
- Dec 11 WOAI (now KMOL) TV channel 4 in San Antonio, TX (NBC) 1st broadcast
- Dec 12 AL votes 7-1 rejecting legalizing the spitball
- Dec 13 AL votes down proposal to revive spitball
- Dec 13 Knesset votes to transfer Israel's capital to Jerusalem
The Just Assassins
Dec 15Albert Camus' play "The Just Assassins (Les Justes)" premieres in Paris
Regina
Dec 17 Marc Blitzstein's musical drama "Regina", based onLillian Hellman's play "The Little Foxes", closes at 46th St Theatre, NYC. after 56 performances and 2 Tony Awards
A Streetcar Named Desire
Dec 17Tennessee Williams' stage drama "A Streetcar Named Desire", starringJessica Tandy,Marlon Brando, and Kim Hunter, and directed byElia Kazan closes at Ethel Barrymore Theatre, NYC, after 855 performances, winning a Tony Award and a Pulitzer Prize
Beauty And The Beast
Dec 20Maurice Ravel and John Cranko's ballet "Beauty And The Beast" premieres
Samson and Delilah
Dec 21 "Samson and Delilah", directed and produced byCecil B. DeMille, starringHedy Lamarr and Victor Mature, premieres in New York
- Dec 21 Dutch 1st Chamber accept sovereignty of Indonesia
A Christmas Carol
Dec 25 First television adaptation ofCharles Dickens' "A Christmas Carol" debuts in American syndication; low budget 30-minute production stars Taylor Holmes and is narrated by Vincent Price
Event of Interest
Dec 27Queen Juliana of the Netherlands grants independence to Indonesia