The clovis tradition, a sophisticated stone technology based on a sharp point that was fastened to the end of a hunting spear, flourished (widely but briefly) in the central plains and in what is now the eastern united states. until recently, the clovis people were considered the first settlers of the americas. recent research now suggests, however, that

It will in all probability the Americas were settled by a few homesteaders who came at various circumstances, maybe by various courses and had diverse constitutions and hereditary markers, which keep on being found and faced off regarding. 
The Clovis culture takes its name from the town in New Mexico, where the striking stone shot point normal for the convention was first found. Its particular qualities incorporate a focal furrow, or woodwind, along both of its countenances and finely worked edges.

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.