Mesopotamia: bronze & iron metallurgy, the wheel, ships, writing (alphabetic), the veiling of women, Judaism
Greeks: the concept of a democracy, the Olympic games, philosophy (the thoughts of Socrates, Plato, & Aristotle), tragic & comedic plays, philosophy (the thoughts of the Epicureans, Skeptics, and Stoics)
Romans: the idea of paterfamilias, Mithraism, Christianity
