Original sentence: And finally, from 1982 to 1985, he served as a visting professor of history at Grand Valley State College in Allendale, Michigan.Johnson's involvment in politics began in 1940 when, on his own, he made stump speeches for President Franklin Roosevelt
Edited sentence: And finally, from 1982 to 1985, he served as a visiting professor of history at Grand Valley State College in Allendale, Michigan.Johnson's involvement in politics began in 1940 when, on his own, he made stump speeches for President Franklin Roosevelt