Final answer:
The Olympic Games provided an opportunity for unity and understanding among Greek city-states.
Step-by-step explanation:
The Olympic Games provided an opportunity to build unity and understanding among the Greek city-states. This topic sentence best introduces a paragraph containing the details mentioned. The Olympic Games were a major event in ancient Greece, and it showcased the athletic achievements of citizens from various Greek city-states. Apart from paying homage to the Greek god Zeus, the games served as a platform for fostering unity and camaraderie among the participating city-states.
Learn more about The purpose and significance of the ancient Olympic Games