When delegates from walked out of the democratic convention in 1860, the democrat party officially split over the issue of slavery?

What led to the environmental damage that caused the dust bowl? 1. desert winds emerging from the southwest 2. rotating crops every year and having fallow land 3.overplanting throughout the great plains 4.a year-long drought

What ways did native americans influence the lives of european settlers in early america ?

Which of the following actions is an example of historiography