Why was the concept of the city-state an important innovation?

Prior to the development of city-states, people lived in rural spread out hamlets, which were subject to frequent raids by other factions. By concentrating people in a more protected settlement, which was the forerunner of the city-state, people had an increased survival rate.

1920 census

the census was scheduled for january the 1st, as the government believed that more farmers would be in their homes by that time instead of april. the census did not ask about unemployment, the number of children, and how long was a couple married were not taken into consideration. individuals were considered as residents of the places they normally slept, not the places were they worked at or visited.

2010 census

the census was scheduled for april 1st, 2010. it was the shortest census in history: it only contained 10 questions related to name, age, gender, ethnicity, relationship, and whether the citizen owned a home or rented one. the government launched a website in order to provide the citizens with information regarding the census. there were also "teach census weeks" in schools nationwide.

The majority of both parties voted in favor of the bill all senate republicans voted in favor of the bill