The year 3 AD is in the 1st century AD. The 1st century spans from the year 1 AD to the year 100 AD. Therefore, 3 AD falls within that time frame.
1st century AD
It is the first century AD.
The 1st century AD.
It is the 18th century AD.
The first century AD.
It is the second century AD.
The 1st century AD.
The 1st century AD.
The first century AD.
The 3rd Century AD.
It is the first century AD.
seventeenth century