WHAT ALL HAPPENED AUGUST TO NOVEMBER 1939
Find out what all happened August to November 1939

The Japanese Mitsubishi G4M twin-engine "Betty" Bomber makes its maiden flight. (23. October 1939)

Switzerland mobilizes its forces and the Swiss Parliament elects Henri Guisan to head the Swiss Army (an event that can happen only during war or mobilization). (1. September 1939)

World War II: First attack on British territory by the German Luftwaffe. (16. October 1939)

Burmese national hero U Ottama dies in prison after a hunger strike to protest Britain's colonial government. (9. September 1939)

World War II: Polish government of Ignacy Mościcki flees to Romania. (18. September 1939)

Nine Czech students are executed as a response to anti-Nazi demonstrations prompted by the death of Jan Opletal. In addition, all Czech universities are shut down and over 1200 Czech students sent to concentration camps. Since this event, International Students' Day is celebrated in many countries, especially in the Czech Republic. (17. November 1939)

General Władysław Sikorski becomes commander-in-chief of the Polish Government in exile. (30. September 1939)

World War II: a Bristol Blenheim is the first British aircraft to cross the German coast following the declaration of war and German ships are bombed. (4. September 1939)

Nazi Germany mounts a staged attack on the Gleiwitz radio station, creating an excuse to attack Poland the following day thus starting World War II in Europe. (31. August 1939)

Venlo Incident: Two British agents of SIS are captured by the Germans. (8. November 1939)

Warsaw surrenders to Nazi Germany during World War II. (28. September 1939)

Romanian Prime Minister Armand Călinescu is assassinated by far-right legionnaires of the fascist paramilitary organization called the Iron Guard. (21. September 1939)

World War II: Sonderaktion Krakau takes place. (6. November 1939)

In Munich, Adolf Hitler narrowly escapes the assassination attempt of Georg Elser while celebrating the 16th anniversary of the Beer Hall Putsch. (8. November 1939)

World War II: France, the United Kingdom, New Zealand and Australia declare war on Germany after the invasion of Poland, forming the Allies. (3. September 1939)

Nazi Germany and the Soviet Union agree on a division of Poland after their invasion during World War II. (28. September 1939)

World War II: The Estonian military boards the Polish submarine ORP Orzeł in Tallinn, sparking a diplomatic incident that the Soviet Union will later use to justify the annexation of Estonia. (14. September 1939)

Albert Einstein and Leó Szilárd write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon. (2. August 1939)

After a one-month Siege of Warsaw, hostile Nazi forces enter the city. (1. October 1939)

World War II: The Soviet Union joins Nazi Germany's invasion of Poland during the Polish Defensive War of 1939. (17. September 1939)