WHAT ALL HAPPENED MARCH TO SEPTEMBER 1937
Find out what all happened March to September 1937

Second Sino-Japanese War: The Chinese Eighth Route Army gains a minor, but morale-boosting victory in the Battle of Pingxingguan. (25. September 1937)

Amelia Earhart and navigator Fred Noonan are last heard from over the Pacific Ocean while attempting to make the first equatorial round-the-world flight. (2. July 1937)

Spanish Civil War: The start of the Battle of El Mazuco. (6. September 1937)

New Deal: the United States Senate votes down President Franklin D. Roosevelt's proposal to add more justices to the Supreme Court of the United States. (22. July 1937)

Alabama drops rape charges against the so-called "Scottsboro Boys". (24. July 1937)

The Steel Workers Organizing Committee signs a collective bargaining agreement with U.S. Steel, leading to unionization of the United States steel industry. (2. March 1937)

Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England. (12. April 1937)

Aden becomes a British crown colony. (1. April 1937)

End of the Battle of Brunete in the Spanish Civil War. (26. July 1937)

Spanish Civil War: Llanes falls to the Nationalists following a one-day siege. (5. September 1937)

Pennsylvania becomes the first (and only) state of the United States to celebrate Flag Day officially as a state holiday. (14. June 1937)

A Soviet station, North Pole-1, becomes the first scientific research settlement to operate on the drift ice of the Arctic Ocean. (21. May 1937)

Toyota Motors becomes an independent company. (28. August 1937)

U.S. House of Representatives passes the Marihuana Tax Act. (14. June 1937)

The Philippines holds a plebiscite for Filipino women on whether they should be extended the right to suffrage; over 90% would vote in the affirmative. (30. April 1937)

Ponce Massacre: 18 people and a 7-year-old girl in Ponce, Puerto Rico, are gunned down by a police squad acting under orders of US-appointed Governor, Blanton C. Winship. (21. March 1937)

Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco Franco's forces. (7. May 1937)

J. R. R. Tolkien's The Hobbit is published. (21. September 1937)

In the Spanish Civil War, Sovereign Council of Asturias and León is proclaimed in Gijón. (24. August 1937)

Chinese Air Force Day: The beginning of air-to-air combat of the Second Sino-Japanese War and World War II in general, when 6 Imperial Japanese Mitsubishi G3M bombers are shot down by the Nationalist Chinese Air Force while raiding Chinese air bases. (14. August 1937)