The civilisation that played a significant role in the development of the Pan-Hellenic Festival is the Greek. The Pan-Hellenic Games were a series of athletic competitions held in ancient Greece, with the most famous being the Olympic Games. These games were a key part of Greek culture and helped foster unity among the Greek city-states. The other civilisations listed—Chinese, Roman, and Indus—did not have a direct influence on the development of the Pan-Hellenic Festival.