This document provides information about great political thinkers from ancient, medieval, and modern time periods. In the ancient period, it lists and provides brief biographies of Socrates, Plato, Aristotle, Polybius, and Cicero. In the medieval period, it lists and provides brief biographies of Saint Augustine, Saint Thomas Aquinas, Marsillio of Padua, Mohammed Al-Farabi, Hossen Ibn-Sina, Al-Ghazali, and Ibn-Rushd. The document organizes political thinkers by time period and includes their names, dates of birth and death, and brief background information for each one.