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.
Although it is probably the second-shortest war in recorded history, there can be no doubt that its aftermath and outcome have had long-lasting effects. In fact, the decisive Israeli victory that ended the conflict still shapes the political landscape of the area in the 21st Century, more than half a century later.