|Calendar and Summary for March 1940|
|February 1940||April 1940|
|Summary of Significant Events for March 1940|
|The British Government informed the Cunard Line they would be requisitioning the Queen Mary ocean liner for war duty. Three Soviet divisions launch a massive general offensive in Finland. The office of the Canadian Prime Minister announced that there are no legal obstacles for Canadian volunteers participating in the war in Finland. The first batch of volunteers boarded a ship in Ottawa which was bound for Finland. Finland was ready to open peace talks if the Soviet Union will drop its demand for cession of Viipuri and Sortavala. The Soviet Government formally apologized to Sweden over the bombing of Pajala on February 21, 1940. The Soviet Union announced its readiness to open talks with Finland in Moscow, but would not agree a ceasefire until the talks were actually underway. Finland’s delegation under the leadership of Prime Minister Risto Ryti in Moscow met the Soviet negotiating team on March 8,1940. On March 9, 1940 the U-140 sank 3 merchant ships. German Foreign Minister Joachim von Ribbentrop met Italian Prime Minister Benito Mussolini in Italy. von Ribbentrop informed Mussolini of Hitler’s plan to invade France and assured him of a swift victory. The Treaty of Moscow ending the Winter War was signed in the Kremlin at 1 o'clock in the morning Finnish time. The peace treaty took effect on all fronts at 11 a.m. In the Bay of Bengal near the Nicobar Islands, British aircraft carrier HMS Eagle (94) was damaged when a major explosion occurred in a bomb room. German Chancellor Adolf Hitler and Italian Prime Minister Benito Mussolini met each other at the little station on the Brenner Pass on the border of Italy and Austria. French Prime Minister Édouard Daladier resigned under a storm of criticism over his handling of the Finnish situation and other matters. RAF Bomber Command carried out their first attack on an enemy land target when 41 Whitleys and Hampdens attacked the German seaplane base on the island of Sylt. The French the Chamber of Deputies elected Paul Reynaud Prime Minister and he formed a new French government. The Lahore Resolution was adopted by the All-India Muslim League and its principles formed the foundation for Pakistan's first constitution. At a meeting in London the Allied Supreme War Council resolved that neither Britain nor France would make a separate peace with Germany. Wang Jingwei became the President of the Executive Yuan and Chairman of the National Government, effectively the head of state of the Japanese puppet Central China government based in Nanjing. The Karelo-Finnish Soviet Socialist Republic was created by merging the KASSR with the Finnish Democratic Republic, created from territory ceded by Finland in the Winter War by the Moscow Peace Treaty. 26 ships (73,071 tons) were sunk by U-boats and mines.|
|Events occurring in March 1940 with no specific dates|
|The Atomic Bombs|
|American physicist John R. Dunning of Columbia University and his colleagues demonstrated that fission was more readily produced in the rare uranium-235 isotope, not the more plentiful uranium-238.|
Robert Frisch and Rudolf Ernst Peierls co-authored the Frisch–Peierls
memorandum. This short paper was the first to set out how one could
construct an atomic bomb from a small amount of fissionable uranium-235.
Learn more about the American Atomic Bombs Program …
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