Stan Lee was a legendary writer, editor, and publisher at Marvel Comics, where he co-created iconic characters like Spider-Man, the Fantastic Four, the Hulk, and many more.
DC Comics was founded in 1934 as National Allied Publications, later becoming National Comics Publications, and finally DC Comics. It was founded by Malcolm Wheeler-Nicholson, who had been publishing comics since the early 1930s.
DC Comics is home to characters like Superman, Batman, Wonder Woman, and Aquaman.
So, while both Marvel and DC are major comic book publishers, they have different founders and origins.