Updated:
Original:
Year
1840
Month Day
January 19

Wilkes claims portion of Antarctica for U.S.

During an exploring expedition, Captain Charles Wilkes sights the coast of eastern Antarctica and claims it for the United States. Wilkes’ group had set out in 1838, sailing around South America to the South Pacific and then to Antarctica, where they explored a 1,500-mile stretch of the eastern Antarctic coast that later became known as Wilkes Land. In 1842, the expedition returned to New York, having circumnavigated the globe.

Antarctica was discovered by European and American explorers in the early part of the 19th century, and in February 1821 the first landing on the Antarctic continent was made by American John Davis at Hughes Bay on the Antarctic Peninsula. During the next century, many nations, including the United States, made territorial claims to portions of the almost-inhabitable continent. However, during the 1930s, conflicting claims led to international rivalry, and the United States, which led the world in the establishment of scientific bases, enacted an official policy of making no territorial claims while recognizing no other nation’s claims. In 1959, the Antarctic Treaty made Antarctica an international zone, set guidelines for scientific cooperation, and prohibited military operations, nuclear explosions, and the disposal of radioactive waste on the continent.

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