Henry Kissinger in the Class of 1950 Harvard yearbook. A selection from Henry Kissinger's The Meaning of History: Reflections on Spengler, Toynbee and Kant, 1950. The Meaning of History was Kissinger's senior honors thesis at Harvard. According to Niall Furguson, it made history by being the longest honors thesis at Harvard. Kissinger's doctoral dissertation Peace, Legitimacy, and the