World War II: Operation Weserübung: Germany invades Denmark and Norway. Date: April 9, 1940 Read more on Wikipedia → 📅 Other events on April 9 📅 Events on this day in 1940 📅 On This Day (Today)
The Central Committee of the Mongolian People's Revolutionary Party elects Yumjaagiin Tsedenbal as General Secretary, marking the beginning of his 44-year-long tenure as de facto leader of Mongolia. Date: April 8, 1940 Read more on Wikipedia → 📅 Other events on April 8 📅 Events on this day in 1940 📅 On This Day (Today)
Booker T. Washington becomes the first African American to be depicted on a United States postage stamp. Date: April 7, 1940 Read more on Wikipedia → 📅 Other events on April 7 📅 Events on this day in 1940 📅 On This Day (Today)
Second Sino-Japanese War: Japan declares Nanking capital of a new Chinese puppet government, nominally controlled by Wang Jingwei. Date: March 30, 1940 Read more on Wikipedia → 📅 Other events on March 30 📅 Events on this day in 1940 📅 On This Day (Today)
The Lahore Resolution (Qarardad-e-Pakistan or Qarardad-e-Lahore) is put forward at the Annual General Convention of the All-India Muslim League. Date: March 23, 1940 Read more on Wikipedia → 📅 Other events on March 23 📅 Events on this day in 1940 📅 On This Day (Today)
World War II: Adolf Hitler and Benito Mussolini meet at the Brenner Pass in the Alps and agree to form an alliance against France and the United Kingdom. Date: March 18, 1940 Read more on Wikipedia → 📅 Other events on March 18 📅 Events on this day in 1940 📅 On This Day (Today)
The Winter War between Finland and the Soviet Union officially ends after the signing of the Moscow Peace Treaty. Date: March 13, 1940 Read more on Wikipedia → 📅 Other events on March 13 📅 Events on this day in 1940 📅 On This Day (Today)
The most destructive train accident in Finnish history kills 39 and injures 69 people in Turenki, Janakkala. Date: March 12, 1940 Read more on Wikipedia → 📅 Other events on March 12 📅 Events on this day in 1940 📅 On This Day (Today)
Winter War: Finland signs the Moscow Peace Treaty with the Soviet Union, ceding almost all of Finnish Karelia. Date: March 12, 1940 Read more on Wikipedia → 📅 Other events on March 12 📅 Events on this day in 1940 📅 On This Day (Today)
Six high-ranking members of the Soviet politburo, including Joseph Stalin, sign an order for the execution of 25,700 Polish intelligentsia, including 14,700 Polish POWs, in what will become known as the Katyn massacre. Date: March 5, 1940 Read more on Wikipedia → 📅 Other events on March 5 📅 Events on this day in 1940…