The world is said to live till more billion years. After that core will become cold and earth will become inhabitable.
The world cup happens every 4 years.
21 years officially
World War 1 went on for about 4 years.
How many years once seven wonders of the world is nominated and declared?
27 years
80 years
4 years.
2 years
a thousand
4
81 years. The first FIFA World Cup was in 1930.
Olympiads were not held in the years of World Wars I and Two.