The term 'Greek or Roman' refers to the CLASSICAL period of history, which was a time of great cultural and intellectual development in Europe. The CLASSICAL period is often divided into two distinct eras: the Greek ERA (from 800 BC to 323 BC) and the Roman ERA (from 509 BC to 476 AD). During this period, the Greeks and Romans developed many of the philosophical, political, and artistic ideas that still influence our world today.