Commonwealth Games
Sporting contests were held in Olympia,the sanctuary in the W.Peloponnese,ancient Greece as a sacred truce every four years in Greece.
You have the world cup, the U.S president is elected, the Olympics are held , and so is the Euro cup. This all happens every four years.
Events that occur once every eight years include the U.S. presidential election cycle, where the president is elected every four years, but the next election cycle of the same president could be viewed in that context. Additionally, the Summer Olympic Games take place every four years, but the cycle includes a broader context of international sporting events. Some specific anniversaries or recurring festivals might also be celebrated every eight years, depending on the culture or context.
Leap year
29th of February only happens in a leap year. So it only happens every 4 years.
If you mean the number of team members, It would be the USA Summer Olympic Team every four years.
The Olympics is know as the biggest sporting event in the world and is held every four years in a different country. The gymnaestrada is also held every four years in a different country around the world. There are around 12,000 athletes in the Olympics but there are over 20,000 gymnasts in the gymnaestrada making it the biggest sporting event in the world for participants.
eclipse
Some things that happen once every four years include: - Leap Years - US Elections - The Olympics
The President of The United States of America is inaugurated.
The Olympics are held once every fourth year.