4657 events
South African medical researcher Max Theiler develops the yellow fever vaccine at the Rockefeller Foundation in New York
The Commonwealth of the Philippines holds a plebiscite for Filipino women on whether they should be extended the right t
Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco
Spanish Civil War: The Largo Caballero government resigns in the wake of the Barcelona May Days, leading Juan Negrín to
Spanish Civil War: The Largo Caballero government resigns in the wake of the Barcelona May Days, leading Juan Negrín to
A Soviet station, North Pole-1, becomes the first scientific research settlement to operate on the drift ice of the Arct
Walter Reuther and members of the United Auto Workers (UAW) clash with Ford Motor Company security guards at the River R
Walter Reuther and members of the United Auto Workers (UAW) clash with Ford Motor Company security guards at the River R
Great Purge: The Soviet Union under Joseph Stalin executes eight army leaders
The world's first emergency telephone number, 999, is introduced in London
Spanish Civil War: Battle of Brunete: The battle begins with Spanish Republican troops going on the offensive against…
Spanish Civil War: Battle of Brunete: The battle begins with Spanish Republican troops going on the offensive against…
The Marco Polo Bridge Incident (Lugou Bridge) provides the Imperial Japanese Army with a pretext for starting the…
Turkey, Iran, Iraq, and Afghanistan sign the Treaty of Saadabad.
Turkey, Iran, Iraq, and Afghanistan sign the Treaty of Saadabad.
The silent film archives of Fox Film Corporation are destroyed by the 1937 Fox vault fire.
New Deal: The United States Senate votes down President Franklin D. Roosevelt's proposal to add more justices to the…
Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.
Tongzhou mutiny: In Tongzhou, China, the East Hebei Army attacks Japanese troops and civilians.
Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH…