1939

February 27 - The Supreme Court rules that sit-down strikes are unconstitutional.

April 30 - Public television broadcast is begun in the U.S.

April 30 - The New York World's Fair opens.

May 9 - The first Catholic beatification of an American Indian, Kateri Tekakwitha, takes place.

May 20 - Pan American Airlines open regular flights between the U.S. and Europe.

June 7 - The first King and Queen of England to visit the U.S. are King George VI and Queen Elizabeth of Great Britain.

June 22 - The first U.S. National Water Ski tournament is held at Jones Beach, New York.

July 22 - J. M. Bolin becomes the first female African American judge to be appointed in New York City.

November 13 - Henry Jeffers demonstrates his invention, the rotolactor, a rotating milking machine.

December 24 - The first offset printed daily newspaper, The World in Opelousas, Louisiana begins publication.