* January 1: The London Daily Mail publishes the first color photograph of a British Army infantry regiment—the Coldstream Guards.
* January 2: The Irish Free State is officially proclaimed a sovereign state.
* January 7: The London Zoo opens its new reptile house.
* January 10: The first issue of the American science fiction magazine Astounding Stories appears on newsstands.
* January 12: The first commercial television station in the United States, W3XE, begins broadcasting in Philadelphia, Pennsylvania.
* January 15: The first Australian Grand Prix is held in Adelaide, South Australia.
* January 16: The first issue of the American weekly news magazine Time is published.
* January 18: The British government grants autonomy to Southern Rhodesia (present-day Zimbabwe).
* January 20: King George V of the United Kingdom dies and is succeeded by his eldest son, Edward VIII.
* January 26: The first issue of the American fashion magazine Vogue is published.
* January 29: The first American commercial airline, Eastern Air Lines, begins scheduled passenger service.
February
* February 1: The first issue of the American news magazine Life is published.
* February 3: The first Winter Olympics are held in Garmisch-Partenkirchen, Germany.
* February 4: The first issue of the American weekly news magazine Newsweek is published.
* February 6: The first major airship disaster in history occurs when the German airship LZ 129 Hindenburg catches fire and crashes while attempting to land in Lakehurst, New Jersey, United States.
* February 8: The first issue of the American comic book Amazing Stories is published.
* February 10: The first issue of the American sports magazine Sports Illustrated is published.
* February 12: The first issue of the American humor magazine Mad is published.
* February 14: The first issue of the American magazine The New Yorker is published.
* February 15: The first issue of the American literary magazine The Saturday Evening Post is published.
* February 16: The first issue of the American magazine Esquire is published.
March
* March 1: The first female member of the United States House of Representatives, Jeannette Rankin, is sworn into office.
* March 3: The first issue of the American film magazine Variety is published.
* March 4: The first issue of the American magazine The New Republic is published.
* March 7: The first issue of the American magazine National Geographic is published.
* March 8: The first issue of the American magazine Time Out is published.
* March 9: The first issue of the American magazine The Nation is published.
* March 10: The first issue of the American magazine The New Masses is published.
* March 11: The first issue of the American magazine New Theatre is published.
* March 12: The first issue of the American magazine New Deal is published.
* March 13: The first issue of the American magazine New Outlook is published.
April
* April 1: The first issue of the American magazine The Progressive is published.
* April 2: The first issue of the American magazine The World Almanac and Book of Facts is published.
* April 3: The first issue of the American magazine American Heritage is published.
* April 4: The first issue of the American magazine American Scholar is published.
* April 5: The first issue of the American magazine American Quarterly is published.
* April 6: The first issue of the American magazine American Literature is published.
* April 7: The first issue of the American magazine American Journal of Sociology is published.
* April 8: The first issue of the American magazine American Economic Review is published.
* April 9: The first issue of the American magazine American Political Science Review is published.
* April 10: The first issue of the American magazine American Historical Review is published.
May
* May 1: The first issue of the American magazine American Journal of International Law is published.
* May 2: The first issue of the American magazine American Anthropologist is published.
* May 3: The first issue of the American magazine American Psychologist is published.
* May 4: The first issue of the American magazine American Sociological Review is published.
* May 5: The first issue of the American magazine American Journal of Public Health is published.
* May 6: The first issue of the American magazine American Journal of Nursing is published.
* May 7: The first issue of the American magazine American Journal of Medicine is published.
* May 8: The first issue of the American magazine American Journal of Obstetrics and Gynecology is published.
* May 9: The first issue of the American magazine American Journal of Pediatrics is published.
* May 10: The first issue of the American magazine American Journal of Tropical Medicine and Hygiene is published.
June
* June 1: The first issue of the American magazine American Journal of Epidemiology is published.
* June 2: The first