Who were recruited into the Roman army in the (1st) century BC?

In the first century, the army became hired, so everyone who wished to serve was accepted into the service. At that time, the military service of any of the legionnaires was supposed to last 25 years. After this period, the legionnaire received the status of a veteran and could go on a well-deserved rest, or continue the service. Also, at the end of his service, the legionnaire received land where he could build his house and farm. He could get land not only in Italy, but in any other Roman province.