The first century AD consists of the years 1AD to 100AD.
The first century AD.
It is the first century AD.
It is the first century AD.
The first century AD.
The first century AD
There was no year zero century or year zero. 1 AD immediately followed 1 BC. The first century AD immediately followed the first century BC. There was no century between them.
The first century.
In 1 AD.
1st century
No time at all. The first century AD immediately follows the first century BC. There is no zero century, year zero or anything else between them.
The first century.
It is in the first century BC, which is different to the first century AD.