Today is the 55th day of the year, with only 310 days remaining.
303 - Diocletian, Roman Emperor, publishes his edict that begins the persecution of Christians in his portion of the Empire.
1711 - The London premiere of Rinaldo by George Frederic Handel, the first Italian opera written for the English stage.
1863 - Arizona is organized as a United States territory.
1868 - Andrew Johnson becomes the first President to be impeached by the United States House of Representatives. He is later acquitted.
1917 - The U.S. ambassador to the United Kingdom is given the Zimmerman Telegram, in which Germany pledges to ensure the return of New Mexico, Texas, and Arizona to Mexico, if the country to the south declares war on the United States.
1920 - The Nazi Party is founded.
1968 - The Tet Offensive is halted, South Vietnam recaptured Hue.
1980 - The United States Olympic Hockey team completes their Miracle on Ice by defeating Finland 4 to 2 to win the gold medal.