6 years
long, long ago.
Since the first pokemon.
Since a few months
As of October 2023, it has been 100 years since 1923.
They have been out since 1984
The Alamo has been there since 1718.
1919
since 1891 since 1891
Really? How long has it been since you were in kindergarten?
since 1883
As of 2010, it has been 3 years since their last appearance.
It had been a long time since the Capulet's have had a masked ball, so this was a special occasion. In Act I Lord Capulet asks how long it's been since he and his wife had a ball, and a relative answers it had been 30 years.