WHAT ALL HAPPENED MAY TO AUGUST 1937
Find out what all happened May to August 1937

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

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

The world's first emergency telephone number, 999, is introduced in London (30. June 1937)

Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH (Croatian Communist Party) in woods near Samobor. (1. August 1937)

The Golden Gate Bridge in San Francisco, California, is officially opened by President Franklin D. Roosevelt in Washington, D.C., who pushes a button signaling the start of vehicle traffic over the span. (28. May 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)

The Marihuana Tax Act of 1937 is passed in America, the effect of which is to render marijuana and all its by-products illegal. (2. August 1937)

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

In the Spanish Civil War, the Basque Army surrenders to the Italian Corpo Truppe Volontarie following the Santoña Agreement. (24. August 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)

Second Sino-Japanese War: Battle of Lugou Bridge – Japanese forces invade Beijing, China. (7. July 1937)

In California, the Golden Gate Bridge opens to pedestrian traffic, creating a vital link between San Francisco and Marin County, California. (27. May 1937)

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

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

Hindenburg disaster: The German zeppelin Hindenburg catches fire and is destroyed within a minute while attempting to dock at Lakehurst, New Jersey. Thirty-six people are killed. (6. May 1937)

Memorial Day massacre: Chicago police shoot and kill 10 labor demonstrators. (30. May 1937)

Turkey, Iran, Iraq and Afghanistan sign the Treaty of Saadabad. (8. July 1937)

The Battle of Shanghai begins. (13. August 1937)

Tōngzhōu Incident: in Tōngzhōu, China, the East Hopei Army attacks Japanese troops and civilians. (29. July 1937)

The Duke and Duchess of York are crowned as King George VI and Queen Elizabeth of the United Kingdom of Great Britain and Northern Ireland at a ceremony in Westminster Abbey. (12. May 1937)