37 years
Olympiads were not held in the years of World Wars I and Two.
There are the Summer and the Winter Olympics held every 4 years.
400 years passed between the beginning of the Mayan civilization and its decline
Not counting 510 BC or AD 25, 533 years passed between the two.
61 years have passed
A decade is 10 years. Since there are 20 years from 1942 to 1962, that would be 2 decades.
490 years
2000 years
83 years.
How many years have passed between the first and the last buriels from 1921 to 1984?
49 years passed
49 years passed