December 18: National Day in Qatar (1878)Atlas rocket carrying SCORE1622 Portuguese forces and their Imbangala allies defeated the Kongo army at the Battle of Mbumbi.1932 Playing indoors at Chicago Stadium on a modified American football field, the Chicago Bears defeated the Portsmouth Spartans in the first playoff game of the National Football League.1958 The United States launched SCORE (rocket pictured), the world's first communications satellite.1963 Ghanaian and other African students organized a protest in Moscow's Red Square in response to the alleged murder of medical student Edmund Assare-Addo.2017 An Amtrak Cascades passenger train derailed near DuPont, Washington, killing three people and injuring sixty-five others.Yaonian Yanmujin (d.933)Edith of Wessex (d.1075)Ty Cobb (b.1886)Keith Richards (b.1943)More anniversaries: December 17December 18December 19ArchiveBy emailList of days of the yearAbout