Similarities and Differences between Ancient Greek and Modern Olympic Games?

Similarities Between Ancient and Modern Games:

1. Competitions are held every 4 years;

2. Modern and ancient games are a complex of competitions;

Differences:

1. In the ancient Olympic Games, only the Greeks themselves could take part;

2. In ancient times, only men were allowed to participate in sports;

3. Modern sports games last 16 days, and ancient ones only 5.