Assertion: political geographer | /r/HasAspect | two camps
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text: Halford Mackinder, in full Sir Halford John Mackinder, (born February 15, 1861, Gainsborough, Lincolnshire, England—died March 6, 1947, Parkstone, Dorset), British political geographer noted for his work as an educator and for his geopolitical conception of the globe as divided into two camps, the ascendant Eurasian “heartland” and the subordinate “maritime lands,” including the other continents.