In 2017, Kirby was posthumously named a Disney Legend with Lee for their co-creations not only in the field of publishing, but also because those creations formed the basis for Walt Disney Company's financially and critically successful media franchise, the Marvel Cinematic Universe. They had four children, and remained married until his death from heart failure in 1994, at the age of 76.The Jack Kirby Awards and Jack Kirby Hall of Fame were named in his honor, and he is known as "The King" among comics fans for his many influential contributions to the medium.Simon recalled in 1988, "I loved Jack's work and the first time I saw it I couldn't believe what I was seeing.He asked if we could do some freelance work together.There, in the 1960s, Kirby and writer-editor Stan Lee co-created many of the company's major characters, including the Fantastic Four, the X-Men, and the Hulk.The Lee–Kirby titles garnered high sales and critical acclaim, but in 1970, feeling he had been treated unfairly, largely in the realm of authorship credit and creators' rights, Kirby left the company for rival DC.Hayward" (under the pseudonym Curt Davis), the Western crimefighter feature "Wilton of the West" (as Fred Sande), the swashbuckler adventure "The Count of Monte Cristo" (again as Jack Curtiss), and the humor features "Abdul Jones" (as Ted Grey) and "Socko the Seadog" (as Teddy), all variously for Jumbo Comics and other Eisner-Iger clients.He ultimately settled on the pen name Jack Kirby because it reminded him of actor James Cagney.
During this time, Kirby met and began collaborating with cartoonist and Fox editor Joe Simon, who in addition to his staff work continued to freelance.
At DC, Kirby created his Fourth World saga, which spanned several comics titles.
While these series proved commercially unsuccessful and were canceled, the Fourth World's New Gods have continued as a significant part of the DC Universe.
He entered the nascent comics industry in the 1930s, drawing various comics features under different pen names, including Jack Curtiss, before ultimately settling on Jack Kirby.
In 1940, he and writer-editor Joe Simon created the highly successful superhero character Captain America for Timely Comics, predecessor of Marvel Comics.was an American comic book artist, writer, and editor, widely regarded as one of the medium's major innovators and one of its most prolific and influential creators.