As Athenian society evolved, free men were divided between Citizens and Metics. A citizen was born with Athenian parents and were the most powerful group, that could take part in the government of the Polis. After compulsory service in the army they were expected to be government officials and take part in Jury Service. A metic was of foreign birth that had migrated to Athens, to either trade or practice a craft. A metic had to pay taxes and sometimes required to serve in the army. However, they could never achieve full right s of a Citizen, neither could they own houses or land and were not allowed to speak in law courts.