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Unit 731 (Japanese: 731部隊, Hepburn: Nana-san-ichi Butai), short for Manchu Detachment 731 and also known as the Kamo Detachment: 198 and the Ishii Unit, was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War (1937–1945 ...
Euclid (/ ˈ j uː k l ɪ d /; Greek: Εὐκλείδης; fl. 300 BC) was an ancient Greek mathematician active as a geometer and logician. Considered the "father of geometry", he is chiefly known for the Elements treatise, which established the foundations of geometry that largely dominated the field until the early 19th century.
Shirō Ishii. Surgeon General Shirō Ishii ( Japanese: 石井 四郎, Hepburn: Ishii Shirō, [iɕiː ɕiɾoː]; June 25, 1892 – October 9, 1959) was a Japanese war criminal, microbiologist and army medical officer who was the director of Unit 731, a biological warfare unit of the Imperial Japanese Army. Ishii led the development and ...
Subhas Chandra Bose (/ ʃ ʊ b ˈ h ɑː s ˈ tʃ ʌ n d r ə ˈ b oʊ s / ⓘ shuub-HAHSS CHUN-drə BOHSS; 23 January 1897 – 18 August 1945) was an Indian nationalist whose defiance of British authority in India made him a hero among many Indians, but his wartime alliances with Nazi Germany and Imperial Japan left a legacy vexed by authoritarianism, anti-Semitism, and military failure.
World Book Encyclopedia. The World Book Encyclopedia is an American encyclopedia. [1] World Book was first published in 1917. Since 1925, a new edition of the encyclopedia has been published annually. [1] Although published online in digital form for a number of years, World Book is currently the only American encyclopedia which also still ...
History of measurement. The earliest recorded systems of weights and measures originate in the 3rd or 4th millennium BC. Even the very earliest civilizations needed measurement for purposes of agriculture, construction and trade. Early standard units might only have applied to a single community or small region, with every area developing its ...
The history of the metric system began during the Age of Enlightenment with measures of length and weight derived from nature, along with their decimal multiples and fractions. The system became the standard of France and Europe within half a century. Other measures with unity ratios [Note 1] were added, and the system went on to be adopted ...
World War II or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two alliances: the Allies and the Axis powers. Nearly all of the world's countries, including all of the great powers, participated in the conflict, and many invested all available economic, industrial, and scientific capabilities in pursuit of total war, blurring the distinction between ...