Academic tenure was put in place in U.S. school systems in the first half of the 20th century to protect teachers from arbitrary punishment, but in the last several decades it has morphed into something else altogether.
More facts about short wars: 1  The second-shortest war in recorded history occurred during the 20th century. Launched on 5 June 1967, the Six Day War was the result of Egypt calling for Arab nations to take action against Israel after leaders in that nation made threats against the country of Syria.
The Second Sino-Japanese War (July 7, 1937 â September 9, 1945), so named due to the First Sino-Japanese War of 1894â95, was a military conflict fought primarily between the Republic of China and the Empire of Japan from 1937 to 1945.he Second Sino-Japanese War (July 7, 1937 â September 9, 1945), so named due to the First Sino-Japanese War of 1894â95, was a military conflict fought primarily between the Republic of China and the Empire of Japan from 1937 to 1945.