Do you think there might have been a relationship between the violence of the vietnam war and the growing climate of violence in the united states during 1968?

Increases in the draft and violence in Vietnam led to more violent protests in the US. 

Anti-war protests hit a height during 1968 with an peak in the draft and increased numbers of soldiers being killed in Vietnam. The protests were violent themselves and were met with violence. The protest at the 1968 Democratic Convention would one of the most violent of the whole period. 

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.