Was Jim Crow a real person?

Jim crow was not a real person but it was a phrase "Jim Crow" has often been attributed to "Jump Jim Crow", a song-and-dance caricature of blacks performed by white actor Thomas D.Rice in blackface, which first surfaced in 1832 and was used to satirize Andrew Jackson's populist policies

Um well north korea is a very harsh place because students go to school for 24 hours and almost never rest and the president is well i think sends to much bomb that’s what i think