Halford John Mackinder, who has enjoyed considerable recognition as a founder of modern geographical study, achieved a widespread renown over a decade ago as the pioneer of the “science of geopolitics” of which Hitler had become a disciple. His other accomplishments, however, have been rather neglected, especially his work as an economic theorist and politician. At the beginning of the century, Mackinder was a principal spokesman for the Liberal-Imperialists; he was, in fact, well on his way toward a cabinet post. As a free trade Imperialist, he described with unusual insight the imperialism of capital export, anticipating at some points the later analysis of Hobson and the neo-Marxists, Hilferding and Luxemburg. Then, after a remarkable and sudden conversion to the Chamberlain programme of protection, he demonstrated a similar grasp of the rival neo-mercantile imperialism, and became one of its leading public advocates.
Mackinder was born at Gainsborough in 1861. His father was a doctor and, his first interests being in the field of science, he accepted, in 1880, a junior studentship in physical science at Christ Church, Oxford, where he intended to specialize in biology. While at Oxford, Mackinder discovered how broad and varied were his interests and his talents. He read for two honours schools, natural science and modern history, and for the bar–he was called at the Inner Temple in 1886. More and more, however, he devoted himself to geography, a subject to whose acceptance as an academic discipline he was to make so signal a contribution.