Roman+citizenship

Caused the Social War (91 - 88 BCE) - Rome gave citizenship to all Latin people then took away, Latins were upset and started revolting and created new capital. Romans offered citizenship to anyone who would stop fighting.

Used as incentive for conquered territories. Many leaders of conquered territories would be granted citizenship, also barbarians. Extended throughout Italy after Social War. Caracolla expanded throughout empire in 212. Son of a freeman was automatically citizen.