What killed approximately half of the Aztecs? a. The Spanish Army
b. Famine
c. Other native tribes
d. small pox

What country was south vietnam resist a communist takeover before the united states stepped in? a. germany b. france c. britain d. japan

Is this statement true or false? before 1850, workers in american mines, mills, and factories were poorly paid, but their safety on the job was always protected by strict laws.

Why are nation-states difficult to create?