4657 events
Albert Einstein and Leo Szilard write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to…
Twenty-six Junkers Ju 87 bombers commanded by Walter Sigel meet unexpected ground fog during a dive-bombing…
World War II: Nazi Germany and the Soviet Union sign the Molotov–Ribbentrop Pact. In a secret protocol to the pact,…
The Irish Republican Army carries out the 1939 Coventry bombing in which five civilians were killed.
The Irish Republican Army carries out the 1939 Coventry bombing in which five civilians were killed.
The United Kingdom and Poland form a military alliance in which the UK promises to defend Poland in case of invasion…
Spanish Civil War: The bombing of Alicante kills 313 people
Second Sino-Japanese War: The Chinese Nationalist government creates the 1938 Yellow River flood to halt Japanese forces
Second Sino-Japanese War: The Chinese Nationalist government creates the 1938 Yellow River flood to halt Japanese forces
Second Sino-Japanese War: The Battle of Wuhan starts
The Civil Aeronautics Act is signed into law, forming the Civil Aeronautics Authority in the United States
United States President Franklin D. Roosevelt dedicates the Eternal Light Peace Memorial and lights the eternal flame…
United States President Franklin D. Roosevelt dedicates the Eternal Light Peace Memorial and lights the eternal flame…
Howard Hughes begins a 91-hour airplane flight around the world that will set a new record.
The United States Department of Justice files suit in New York City against the motion picture industry charging…
The Thousand Islands Bridge, connecting New York, United States, with Ontario, Canada, over the Saint Lawrence River,…
Kweilin incident: A Japanese warplane shoots down the Kweilin, a Chinese civilian airliner, killing 14. It is the…
Spanish Civil War: Guernica, Spain, is bombed by the German Condor Legion and the Italian Aviazione Legionaria