February 3 - Snag Airport, in the Yukon reports record cold for North America of minus 81 degrees Fahrenheit.
February 10 - Italy signs a peace treaty with the U.S., Great Britain, France and the U.S.S.R.
March 9 - The end of the first U.S. strike to last longer than one year ends at J. I. Case Manufacturing in Racine, Wisconsin.
March 12 - President Truman requests aid for Turkey and Greece and sets forth the Truman Doctrine for the containment of Communism.
April 30 - Boulder Dam is renamed Hoover Dam.
May 13 - The Taft-Hartley Act is approved by the U.S. Senate which intended to limit the power of Unions by restricting the weapons they could employ.
June 5 - George Marshall asks for a European recovery program called the Marshall Plan.
July 14 - Airline service is started between New York City and Asia.
October 5 - Harry Truman has the first televised Presidential address from the White House.
October 14 - The first supersonic air flight is made by Charles Yeager in California.
October 23 - The first husband and wife to win joint Nobel Prizes are Dr. Carl Cori and Dr. Gerty Cori of the Washington University School of Medicine in St. Louis, Missouri.
December 17 - A blizzard in New York City leaves 27 inches of snow.
