Jasmine Revolution Protesters China Gov't
I don’t mean anything supernatural. Maybe we remember shortest names better and that’s a psychological advantage.
As for olympic games, the reasons don’t seem to be the same from one occurence to another. Maybe having the olympics or any other big, worldwide event brings social changes in a place. In Montreal, Expo 67 gave a huge boost to Quebec nationalism and just 13 years later, it came very close to seceeding.
Also, modern olympics are very expensive. They can add to a country’s debt.
Those are just two of the things that come to my mind right now.