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Alfred Wegener (1880–1930) was a German geophysicist, meteorologist, and explorer who first proposed the continental drift hypothesis in 1912. He was also the first to bore ice cores on a moving Arctic glacier, in Greenland, in 1912. Wegener's hypothesis was not accepted by the scientific community at the time, but it was later vindicated by the work of other scientists, such as Harry Hess and Maurice Ewing.