1776 – Congress opens all U.S. ports to international trade
http://www.history.com/this-day-in-history/congress-opens-all-u-s-ports-to-international-trade
1830 – Mormon Church established
http://www.history.com/this-day-in-history/mormon-church-established
1853 – Emil Jellinek-Mercedes born
http://www.history.com/this-day-in-history/emil-jellinek-mercedes-born
1896 – First modern Olympic Games
http://www.history.com/this-day-in-history/first-modern-olympic-games
1917 – America enters World War I
http://www.history.com/this-day-in-history/america-enters-world-war-i
1968 – 2001: A Space Odyssey released
http://www.history.com/this-day-in-history/2001-a-space-odyssey-released