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.
War fast facts. The shortest war on record took place in 1896 when Zanzibar surrendered to Britain after 38 minutes. The longest was the so-called 100-years war between Britain and France. It actually lasted 116 years, ending in 1453. It was during the 100-years war that direct taxation on income was introduced, a British invention designed to finance the war with France.