I thought there was no such thing as a stupid question, but I have been proven wrong, Thanks for keeping me humble.
The 6th century ad comes after the 3rd century ad.
The 6th century was the years 501 to 600.
The 6th century.
It is the 6th century. 500 years are complete, so that is 5 centuries over and you are into the 5th year of the next century, so it is the 6th century that you are in.
Zechariah.6th century before Christ.
6th century
6th century BC
6th century AD
It is in the 6th century bc.
It is the last year of the 6th century.
6th
in the 6th century