In order to serve as a member in either chamber of the General Assembly, a person must be a U.S. citizen, at least 21 years of age, and for the two years preceding their election or appointment a resident of the district which they represent.
The history of Europe covers the peoples inhabiting Europe from prehistory to the present. The period known as classical antiquity began with the emergence of the city-states of ancient Greece. Later, the Roman Empire came to dominate the entire Mediterranean basin. The fall of the Roman Empire in AD 476 traditionally marks the start of the Middle Ages.
I would say 30,000 cause all the next developments were from the 1860's forward and that is when huge growth happened, after 1860.
