Ancient Athens Ancient Rome The United States Today Citizenship was given to free, native-born men. Any man born to two Roman citizens was a citizen. Anyone born in the US or born to US citizens in another country is a citizen. The Assembly could grant citizenship to those who had served the state. Generals granted citizenship to groups along the Roman border to keep peace. In 212 AD, all free people in the empire were made citizens. Citizenship can be granted through the naturalization process. Only citizens were allowed to vote. Women, slaves, and men not born in Athens could not participate. Only citizens were allowed to vote. Women could not vote, though they did have some rights. All citizens can vote and run for office. Review the table, which shows the requirements of citizenship for ancient Athens, ancient Rome, and the modern United States. How has the idea of citizenship changed throughout history?