Marine Link
Monday, October 24, 2016

This Day in Naval History - July 20

July 20, 2007

1846 - First visit of U.S. warships (USS Columbus and USS Vincennes) to Japan is unsuccessful in negotiating a treaty.

1960 - In first launch of Polaris missile, USS George Washington (SSBN 598) successfully fires 2 operational Polaris missiles while submerged off Florida.

1964 - Four Navy divers enter Project SEALAB I capsule moored 192 feet on the ocean floor off Bermuda for 11 day experiment.

1969 - Former Navy pilot Neil Armstrong is first man to set foot on the moon, announcing, "that's one small step for man, one giant leap for mankind." Armstrong was Commander of Apollo 11 which during its 8 day mission landed on the Sea of Tranquility. Recovery was by HS-4 helicopters from USS Hornet (CVS 12).

For more information on naval history, visit the Naval Historical Center Web site at

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