UT History

Definition of history:

Chinese people used _ of their emperors to count the years.

Nowadays, many countries use the _ calendar

The Christian calendar begins with the birth of _ in _.

The years before the birth of Jesus are called _ (BC).

The years after the birth of Jesus are called _ (AD).

10 years = 1 _

100 years = 1 _

1000 years = 1 _

Prehistoric times is the time before man could _.