Over time, how has the United States government backed the paper currency it printed? Choose all answers that are correct.

A. government's promise to pay

B. gold

C. silver

D. copper

Which term do historians use to describe the personal preferences that people have that affect their interpretation of events

How did the northern u.s. change during the 19th century? select the best choice from the answers provided. a. it became more industrial. b. it became more agrarian. c. it became less populated. d. it became less diverse

Which groups united to form the populist party