International Civil Aviation Day
1783 - William Pitt Jr (24) becomes the youngest ever British Prime Minister
1877 - Thomas A Edison demonstrated the gramophone
1900 - Max Planck, in his house at Grunewald, near Berlin, discovers the law of black body emission.
1917 - US declared war on Austria during World War I
1926 - Gas refrigerator patented
1941 - Japan's attack on Pearl Harbor
http://memory.loc.gov/ammem/today/dec07.html
http://blogs.wsj.com/wsj125/2014/12/06/dec-7-1941-pearl-harbor/ - Wall Street Journal's Report on the Pearl Harbor Attack
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Knowledge History - Science, Engineering, and Management - 7 December
History and Importance of the Day - Index of the Year
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