What development was most important in allowing some people to specialize in activities other than food production?

Why did the 24th amendment and the civil rights act succeed when other legislation had failed?

The viceroy of spain asked that coronado's expadition be cristian and apostolic and not a buchery,what does that mean and did cornado follow his orders

In harriet's country, the ten provincial states that make up the nation hold the majority of power, with a small central government handling foreign policy and trade. harriet lives under a government best described as which of the selections listed below? select one: a. parliamentary b. federal c. confederal d. unitary