Hi
2451 years.
545 years.
918 years
2451 years
2450 years
90 years.
1900 years.
Between them, that is not including the two end years, there are 9979.
49 bc
There is 5,600 years between.
Remembering that there was no year zero, there are 1994 years between 196 BC and 1799 AD.