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Wilhelm Sievers | |
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 During his first expedition to Colombia in 1886 |
Friedrich Wilhelm Sievers (3 December 1860 – 11 June 1921) was a German geologist and geographer. He served as a professor of geography at the University of Giessen. His fieldwork focused on South America, and his Allgemeine Länderkunde was a standard work on world geography for several decades.