Why does it make sense that the Homestead Act of 1862 comes before the Sand Creek Massacre or the Battle of Little Bighorn?

Which was the cause of the rise of the persian empire?

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

How are the republican and democratic presidential candidates chosen? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. each is chosen by the governor of his or her home state. d. they are chosen by the house of representatives.