Today:
1527 – Italian polymath Niccolò Machiavelli dies.
1749 – Halifax, Nova Scotia, is founded.
1788 – New Hampshire ratifies the Constitution of the United States and is admitted as the ninth state.
1791 – King Louis XVI of France and his family are captured while attempting to flee during the French Revolution.
1898 – The United States captures Guam from Spain.
1919 – The German fleet is scuttled at Scapa Flow by German sailors to prevent it from falling into Allied hands.
1940 – France officially surrenders to Germany during World War II.
1948 – Columbia Records introduces the long-playing (LP) record in a public demonstration at the Waldorf-Astoria Hotel in New York City.
1964 – Three civil rights workers, Michael Schwerner, Andrew Goodman, and James Chaney, are murdered in Neshoba County, Mississippi, by members of the Ku Klux Klan.
1982 – John Hinckley Jr. is found not guilty by reason of insanity for the attempted assassination of President Ronald Reagan.
2017 – National Arizona Day was established to celebrate Arizona as the 48th state to join the Union and to honor Arizona’s unique culture, history, and natural beauty.