U.S History Timeline 1917-2020 By Sir W Jan 17, 1917 The Zimmerman Telegram Period: Jan 19, 1917 to Mar 11, 2020 U.S History 1917-2020 A timeline of notable events in U.S history, dating back to 1917, with the The Zimmerman Telegram, to 2020, with the beginning of the covid pandemic.
