WHAT HAPPENED IN 1939.
Look what happened the 1939.

World War II: Germany takes Memel from Lithuania. (22. March 1939)

The Hungarian air force attacks the headquarters of Slovak air force in the city of Spišská Nová Ves, kills 13 people and began the Slovak–Hungarian War. (23. March 1939)

Spanish Civil War: Nationalists begin their final offensive of the war. (26. March 1939)

Spanish Civil War: Generalissimo Francisco Franco conquers Madrid after a three-year siege. (28. March 1939)

The Heinkel He 100 fighter sets a world airspeed record of 463 mph (745km/h). (30. March 1939)

Spanish Civil War: Generalísimo Francisco Franco of the Spanish State announces the end of the Spanish Civil War, when the last of the Republican forces surrender. (1. April 1939)

Faisal II becomes King of Iraq. (4. April 1939)

World War II: Italy invades Albania. (7. April 1939)

Marian Anderson sings at the Lincoln Memorial, after being denied the right to sing at the Daughters of the American Revolution's Constitution Hall. (9. April 1939)

The Grapes of Wrath, by American author John Steinbeck is first published by the Viking Press. (14. April 1939)

Adolf Hitler's 50th birthday is celebrated as a national holiday in Nazi Germany. (20. April 1939)

Billie Holiday records the first civil rights song "Strange Fruit". (20. April 1939)

The 1939-40 New York World's Fair opens. (30. April 1939)

NBC inaugurates its regularly scheduled television service in New York City, broadcasting President Franklin D. Roosevelt's N.Y. World's Fair opening day ceremonial address. (30. April 1939)

The first commercial FM radio station in the United States is launched in Bloomfield, Connecticut. The station later becomes WDRC-FM.[citation needed ] (13. May 1939)

Lina Medina becomes the youngest confirmed mother in medical history at the age of five. (14. May 1939)

The Columbia Lions and the Princeton Tigers play in the United States' first televised sporting event, a collegiate baseball game in New York City. (17. May 1939)

The Canadian National War Memorial is unveiled by King George VI and Queen Elizabeth in Ottawa. (21. May 1939)

World War II: Germany and Italy sign the Pact of Steel. (22. May 1939)

The U.S. Navy submarine USS Squalus sinks off the coast of New Hampshire during a test dive, causing the death of 24 sailors and two civilian technicians. The remaining 32 sailors and one civilian naval architect are rescued the following day. (23. May 1939)