The Olympic Games were held every four years, from 776 B.C. to A.D. 393, when they were abolished by the Christians.
every year
both are/were held every 4 years, or as the ancient Greeks called it, every olympiad
They do it every 4 years.
Every four years at the Temple of Zeus at Olympia in Elis.
Every four years
Every twelve years
Only at Olympia.
Every 4 years.
the Olympics were originally held every four years when the Greeks created it , ( just as it is now )
every 4 years just like now.
In the Ancient Olympics the competitors were nude.
they ancient Olympics begun to honor their gods