In 2012, the world participated in the "Games of the XXX Olympiad", the name by which the Olympics are officially known. The "XXX" in this case is the Roman numeral 30. The modern Olympics have therefore been held 30 times.
The ancient Olympics are not as well-documented. It is believed there were games held at least 177 times in ancient Greece, but it could be more. Historians have not yet agreed on this subject.
Altogether, 42.
About 17 million altogether.
There is 20 days in the winter Olympics
She has been in one Olympics.
Running is commonly refered to as "Track" in the Olympics.
31
28
4567
62
36
595
1500 athletes
42 games
21
they were 15000 in Thailand
21
ey have won 6 000