1987 Event Lynne Cox became 1st to swim from U.S. to Russia across Bering Strait 1987 Event Lynne Cox swims 4.3 km from U.S. to U.S.S.R. in 39 degrees F (4 degrees C) Bering Sea 1955 Event U.S. air patrol plane shot down above Bering sea 1893 Event U.S. no longer allowed exclusive rights in Bering Sea 1892 Event Britian and U.S. sign treaty on seal hunting in Bering Sea 1791 Event Danish navigator Vitus Jonas Bering discovers Alaska 1778 Event Captain Cook reaches Cape Prince of Wales, Bering straits 1741 Death Vitus J Bering, Dutch navigator/explorer, dies 1741 Event Alaska discovered by Danish explorer Vitus Bering 1741 Event Captain Bering discovers Mount St. Elias, Alaska 1741 Event Captain Bering leaves Petropavlovsk, sailing to America