when did the antarctic ocean become an ocean
Southern Ocean The Southern Ocean, geologically the youngest of the oceans, was formed when Antarctica and South America moved apart, opening the Drake Passage, roughly 30 million years ago. The separation of the continents allowed the formation of the Antarctic Circumpolar Current.
History of Antarctica The first landing on the Antarctic mainland, was according to the American Captain John Davis, a sealer, who claimed to have set foot there on 7 February 1821,[9] though this is not accepted by all historians.[citation needed]