you could say two score...it's old school, but a score is twenty years.
Every forty seven years.
If the sentence is a question it means "Are you 100 years old?" and if its a statement it means "It is 100 years old".
Biennial means every two years.
Biannual~ this means twice in one yearbiennial~ this means once every two years
Sextennial means "Recurring every six years."
The duration of Forty Years is 1.42 hours.
The adjective "biennial" means done or occurring every 2 years. (biannual means twice a year)
Type your answer here... Forty years is 4 decades or two score years.
Every century means every 100 years
Sextennial means "Recurring every six years."
Forty Years was created on 1938-08-28.
Forty Years On - song - was created in 1872.