There was a much publicized myth of the late 1800s that centered around the rags-to-riches exploits of fictional boy heroes. these myths were perpetuated by their author,

Answer;

Horatio alger.

Explanation;

-There was a much publicized myth of the late 1800s that centered around the rags-to-riches exploits of fictional boy heroes. these myths were perpetuated by their author, Horatio alger.

-The "rags to riches" stories that Horatio Alger Jr. wrote in the late nineteenth century helped the population of the United States believe the myth that anyone could work hard and become rich, a "self made man"..

definitely a for sure. ill see and update if i get the answer