There is a meme from a 1960s cartoon of three different versions of what Marvel superhero pointing at each other? It was recreated in a 2018 animated film, and referenced in promotional material for a 2021 film.

The term meme was introduced in 1976 by British evolutionary biologist Richard Dawkins (author of "The God Delusion"). He conceived of memes as the cultural parallel to biological genes and considered them as being in control of their own reproduction.