Passage: Nicholas John Spykman (pronounced "Speak-man", 13 October 1893 – 26 June 1943) was an American political scientist who was one of the founders of the classical realist school in American foreign policy, transmitting Eastern European political thought to the United States. A Sterling Professor of International Relations, teaching as part of the Institute for International Studies at Yale University, one of his prime concerns was making his students geographically literate, as geopolitics was impossible without geographic understanding.

Question: What year did Nicholas John Spykman die?
1943