The political activists of the day were the cartoonists. Truly brilliant, at times, they said it all without writing a word.
There were many 'readers' could not write OR read.
Graphic Witness: visual arts & social commentary
a great pictorial history of the genre.
Now we are all stuck with bobbing heads on the 24-7 for commentary, many of whom have never even written a column in a real newspaper. Some counterparts today started out in radio due to a sharp sarcastic voice that caught on.