In 1820, US Navy Captain Nathaniel B. Palmer discovered the frozen continent of Antarctica.
In 1820, US Navy Captain Nathaniel B. Palmer discovered the frozen continent of Antarctica.
1820年美国船长纳撒尼尔发现了南极州冰栋的陆地。
In 1820, US Navy Captain Nathaniel B. Palmer discovered the frozen continent of Antarctica.
1820年美国船长纳撒尼尔发现了南极州冰栋的陆地。