What caused the red scarce in the US in 1920?

Which of these US denominations does not exist A 20 dollar bill B 50 dollar bill C 100 dollar bill D 200 dollar bill? During what time period did many western states enter the union? How did the anasazi disappear? Shirley Chisholm was? Is a 2004 Jefferson Nickel of the Westward Journey of Lewis and Clark series worth anything? What methods did the plains Indians used to Hunt buffaloes? What year did the British first come over to America? Who passed the Dawes Act? What is the value of a 1911 US 2.50 dollar flying eagle gold piece? What was one of the major causes of death along the Trail of Tears for the Cherokee people? How Native Americans live in mission 4? Who administers the presidential oath? Where is mint mark on a 2.5 dollar gold coin minted in 1851? How many kids did paul cuffe have? Why was the south called rebels in the civil war? What are the first thirteen colonies of the US? Who were the Penniless people obligated to engage in unpaid labor for a fixed number of years usually to exchange for a passage to the new world or other benefits? What were literacy tests and poll taxes used to keep blacks from? What level of government did most African American politicians hold office during reconstruction? Many farms and plantations in southern colonies grew these?