The British Broadcasting Corporation (BBC) resumed TV broadcasting for the first time since the end of WWII.
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Germany invaded Poland in the free city of Danzig, which started World War II.
The BBC broadcast the world's first science fiction television program, an adaptation of the play R.U.R.
The US Office of Censorship was created to control info relating to World War II.
American forces made a second attack on Japan during World War II and dropped an atomic bomb on Nagasaki.
The Greenwich Time Signal is broadcast for the first time.