1349 - The Jewish population of Basel, Switzerland is rounded up and incinerated, believed by the residents to be the cause of the ongoing bubonic plague.
1905 - According to the Julian Calendar which was used at the time, Russian workers stage a march on the Winter Palace that ends in the massacre by Czarist troops known as Bloody Sunday, setting off the Russian Revolution of 1905.
1964 - Several Panamanian youths try to put up the Panamanian flag on the US-controlled Panama Canal Zone, during the fight the Panama flag is torn, setting off four days of fighting between US armed forces and civilian Panamanians around the country. This day is known as Martyrs' Day.
1913 - Richard Nixon, 37th President of the United States (d. 1994)
1958 - Mehmet Ali Ağca, Turkish attempted assassin of Pope John Paul II
1873 - Emperor Napoleon III of France (b. 1808)
Happy Losers' Day to me. I'm going to bed.
ETA: no, I'm serious. Look at what happened on January 10th. Caesar crossed the Rubicon, and that was just for starts. Lang's Metropolis! Paine's Common Sense! Tintin! Wikipedia! Rompin' Ronnie Hawkins! Giselle MacKenzie! True, it ends with 'Margaret Thatcher Day in the Falklands' but you can't win them all.