1715 – The first lighthouse in America was authorized for construction at Little Brewster Island, Massachusetts.
1840 – The Province of Canada is created by the Act of Union.
1914 – Austria-Hungary issued an ultimatum to Serbia following the killing of Archduke Francis Ferdinand by a Serb assassin. The dispute led to World War I.
1943 – World War II: The British destroyers HMS Eclipse and HMS Laforey sink the Italian submarine Ascianghi in the Mediterranean after she torpedoes the cruiser HMS Newfoundland.
1952 – Egyptian military officers led by Gamal Abdel Nasser overthrew King Farouk I.
1954 – A law was passed that stated “The Secretary of the Navy is authorized to repair, equip, and restore the United States Ship Constitution, as far as may be practicable, to her original appearance, but not for active service, and thereafter to maintain the United States Ship Constitution at Boston, Massachusetts.”
1958 – The submarine Nautilus departed from Pearl Harbor, Hawaii, under orders to conduct “Operation Sunshine.” The mission was to be the first vessel to cross the north pole by ship. The Nautils achieved the goal on August 3, 1958.
1972 – The U.S. launched Landsat 1 (ERTS-1). It was the first Earth-resources satellite.
2015 – NASA announces discovery of Kepler-452b by Kepler.