The year 1976 was in the 20th Century.
The 20th century ran from January 1, 1901 to December 31, 2000.
It is the 18th century AD.
The first century AD.
The 1st century AD.
It is the first century AD.
1st century AD
The 1st century AD.
The 3rd Century AD.
It is the second century AD.
It is the first century AD.
The 1st century AD.
The first century AD.
AD 1605 was in the 17th century.