January 19

1419: Nearly four years after the Battle of Agincourt, Henry V completes his reconquest of Normandy with the surrender of Rouen.



1839: The British East India Trading Company is given Aden, occupying it and ending pirate attacks against British shipping to India.



1920: The United States votes against joining the League of Nations.



2010: Scott Brown wins "Ted Kennedy's seat", breaking the Democratic filibuster-proof majority in the Senate and tolling the death knell for Obamacare...