5th Golden Globes
Mar 10 5th Golden Globes: "Gentleman's Agreement", Ronald Colman, & Rosalind Russell win
- Mar 11 Jewish Agency of Jerusalem bombed
- Mar 11 WBAL TV channel 11 in Baltimore, MD (CBS) begins broadcasting
- Mar 12 -5°F lowest temperature ever recorded in Cleveland, Ohio in month of March (record tied in 1984)
- Mar 13 Ireland beats Wales, 6-3 at Ravenhill Stadium, Belfast to clinch the Five Nations Rugby Championship and first Grand Slam
- Mar 14 Freedom Train arrives in San Francisco
Olivier's LIFE Cover
Mar 15 Laurence Olivier is featured on the cover of LIFE magazine
- Mar 15 WCAU TV channel 10 in Philadelphia, PA (CBS) begins broadcasting
Billie Holiday Released
Mar 16 Jazz musician Billie Holiday is released early from Alderson Federal Prison Camp in West Virginia due to good behavior
- Mar 18 France & Great Britain & Benelux sign Treaty of Brussels
- Mar 18 Philips begin experimental TV broadcasting
20th Academy Awards
Mar 20 20th Academy Awards: "Gentleman's Agreement", Loretta Young, Ronald Colman win
1st Live Televised Symphony
Mar 20 First live televised symphony performances: Eugene Ormandy leads Philadelphia Orchestra on CBS, followed 90 minutes later by Arturo Toscanini leading the NBC Orchestra on NBC
- Mar 21 "Stop the Music" with Bert Parks premieres on ABC radio
Berg Wins 4th Title
Mar 21 LPGA Titleholders Championship Women's Golf, Augusta CC: Patty Berg wins her 4th Titleholders title by 1 stroke ahead of Babe Zaharias and Peggy Kirk
- Mar 23 10th NCAA Men's Basketball Championship: Kentucky beats Baylor, 58-42; Wildcats' first victory in first title game
- Mar 23 John Cunningham sets world altitude record (54,492' (18,133 m))
- Mar 27 Just 11 days after being released from prison, jazz singer Billie Holiday plays in front of a sold-out crowd at Carnegie Hall, NYC
- Mar 27 The Second Congress of the Workers' Party of North Korea is convened
2nd Tony Awards
Mar 28 2nd Tony Awards: "Mister Roberts" (Play); Henry Fonda (Actor) and Joshua Logan (Director) win
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists