September 13, 1814 – The Battle of Fort Henry in Baltimore Harbor occurred and was observed by Francis Scott Key. He was inspired to write the now-famous verse for our National Anthem after seeing the American flag still flying over the fort following a night of British attack.
September 14, 1741 – Composer George Frederick Handel finishes the “Messiah” after working on it nonstop for 23 days.
September 15, 1916 – Tanks are first used in combat during the Allied offensive at the Battle of the Somme in World War I.
September 18, 1947 – The U.S. Air Force is established as a separate military service.