By what name is Gaius Julius Caesar Augustus Germanicus better known?

Question

By the time of Julius Caesar a century, which was the body commanded in the first instance by a centurion in the Roman army, consisted of how many soldiers ?

Answer 1

The ans is -
Caligula

Answer 2

Caligula
"Caligula" was a childhood nickname by soldiers in his father's army, meaning "little boot". He ruled from 37 to 41 CE.