context: One key figure in the plans for what would come to be known as American Empire, was a geographer named Isiah Bowman. Bowman was the director of the American Geographical Society in 1914. Three years later in 1917, he was appointed to then President Woodrow Wilson's inquiry in 1917. The inquiry was the idea of President Wilson and the American delegation from the Paris Peace Conference. The point of this inquiry was to build a premise that would allow for U.S authorship of a 'new world' which was to be characterized by geographical order. As a result of his role in the inquiry, Isiah Bowman would come to be known as Wilson's geographer.
question: How long did Bowman work for American Geographical Society?