Though comic books have become the go-to source of sequential art storytelling, it was the "Platinum Age" of comic strips that truly kicked this off for modern American pop culture. Before the adventures of Batman and Superman, sardonic animals, hard-nosed detectives, and space-faring adventurers had their stories told in the pages of magazines and newspapers, sometimes through single panels.
Source:https://www.cbr.com/best-comics-with-movie-adaptations/