the olympic games, of course!
the 1940 olympic games were cancelled due to world war 2
WWI cause the 1916 Olympic Games to be cancelled. WWII cause the 1940 and 1944 Olympic Games to be cancelled.
The fifth Olympic Games, to be held in Berlin in 1916, were cancelled due to World War I.
cycling
The IOC.
There were no Olympic Games in 1940 and 1944 due to World War II
1916, 1940 and 1944.
The 1916 Games were cancelled due to World War I.
World War II.
The Olympic games were cancelled in 1916, 1940, and 1944 due to World Wars I and II.
WWII