The first FIA Formula 1 Championship took place in 1950. The championship races took place at Britain, Monaco, USA, Switzerland, Belgium, France and Italy.
13 countries took part of the first world cup.
no
18000 people competing. And 52 countries!
13 countries took part in the first olympic games
13 countries took part: Argentina, Belgium, Bolivia, Brazil, Chile, France, Mexico, Paraguay, Peru, Romania, Uruguay, USA and Yugoslavia.
71 countries took part in the 2014 Commonwealth Games.
204 countries took part
I believe 6 countries took part in World War II.
In 2011 133 countries and regions signed up for the event this year, with 13 of them taking part for the first time.
11 countries took part in the first Commonwealth Games (then known as the British Empire Games): Australia, Bermuda, British Guiana, Canada, England, Ireland, Newfoundland, New Zealand, Scotland, South Africa and Wales.
all of them
204 countries