75,000 years. (A millennium is a thousand years.)
3,000 years in 3 millenniums.
7 millenniums is = to how many years
A millennium is every 1,000 years, so there are 3.5 millenniums in 3,500 years.
11,000 years.
2000 years.
3000 years.
a 100000 years
There are 6000 years
A millennium is a thousand years, so 1974.
8.
10
485