2004 is in the twenty-first century.
The year 705 AD is in the 7th century.
1000 AD
any year after AD 800 and before AD 901
Eighteenth century.
2004 is in the twenty-first century.
Stephen 1135 - 1154
The 2nd century AD.
The first century AD
This is a year in the 13th century AD.
The year 705 AD is in the 7th century.
The sixth century AD covers the years from 501 AD to 600 AD.
Both. It was the last year of the 21st century BC, and the first year of the 21st century AD.
1000 AD
any year after AD 800 and before AD 901
any year after AD 800 and before AD 901
The 17th Century AD