context: In 1820 several missions announce that they are from Antarctica for the first time. The first to land on Antarctica was the captain of an American steamship for seals fishing, John Davis in 1821. When the explorers arrived at the Antarctic Center it was the South Pole's turn to attract the explorers. After several unsuccessful attempts and several victims, the Norwegian Royal Amundsen arrived at the center of the continent in 1911. His competitor in this British race, Robert Falcon Scott, died in an attempt to knock. The lowest temperature recorded in nature on Earth is 89.2 ° - (128.6 ° F). It was recorded on July 21, 1983 at Vostok Station.
question: When was the continent of Antarctica discovered?
answers.text: 1820