https://nces.ed.gov/NAAL/lit_history.asp dramatically increase literacy rates dramatically increase literacy rates dramatically increase literacy rates https://nces.ed.gov/NAAL/lit_history.asp dramatically increase literacy rates since 1940 dramatically increase literacy rates plummeted https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp https://nces.ed.gov/NAAL/lit_history.asp