- Mar 1 12 pro-independence revolutionaries captured in and around Chittagong in Bengal province, British India are sentenced to deportation for life, two to three-year prison terms with the remaining 32 being acquitted.
Lindbergh kidnapping
Mar 1 The "Lindbergh kidnapping", 20 month old son of Charles and Anne Lindbergh kidnapped from home in East Amwell, New Jersey, found dead 12 May
De Valera Executive Council President
Mar 9 Fianna Fáil head Eamon De Valera elected President of Ireland's Executive Council
- Mar 9 Former Chinese emperor Henry Pu-Yi installed as head of Manchuria
Police Raid Hitler HQ
Mar 17 German police raid Adolf Hitler's Nazi headquarters
Morenz Surpasses Denneny
Mar 17 Montreal Canadiens center Howie Morenz registers his 334th career point with an assist in a 10-4 win v NY Americans; passes Cy Denneny as NHL leader for career points
- Mar 18 91st Grand National: Tim Hamey wins aboard 50/1 outsider Forbra
- Mar 19 England beats Scotland, 16-3 at Twickenham, London to force a 3-way share with Wales and Ireland of renewed Home Nations Rugby Championship; France expelled, alleged professionalism
- Mar 19 The Sydney Harbour Bridge is opened in Sydney, Australia
- Mar 20 Kara-Kalpak Autonomous Region in RSFSR becomes Kara-Kalpak ASSR
- Mar 24 1st US radio broadcast from a moving train (Belle Baker WABC from MD)
- Mar 27 De Bataven soccer team forms in Gendt
Jack Benny Debut
Mar 29 Jack Benny debuts on radio, on Ed Sullivan's New York interview program
- Mar 31 150 wild swans die in Niagara Falls
- Mar 31 Ford publicly unveils its V-8 engine
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists