Following his debut in Fantastic Four #52-53 (July-Aug. 1966) and subsequent guest appearance in Fantastic Four Annual #5 (1967) and with Captain America in Tales of Suspense #97-99 (Jan.-March 1968), the Black Panther Helmet journeyed from the fictional African nation of Wakanda to New York City, New York to join the titular American superhero team in The Avengers #52 (May 1968), appearing in that comic for the next few years. During his time with the Avengers, he made solo guest-appearances in three issues of Daredevil, and fought Doctor Doom in Astonishing Tales #6-7 (June & Aug. 1971), in that supervillain’s short-lived starring feature. He later returned in a guest-appearance capacity in Fantastic Four #119 (Feb. 1972) during which he briefly tried using the name Black Leopard to avoid connotations invoking the Black-militant political party the Black Panthers. He received his first starring feature with Jungle Action #5 (July 1973), a reprint of the Panther-centric story in The Avengers #62 (March 1969). A new series began running the following issue, written by Don McGregor, with art by pencilers Rich Buckler, Gil Kane, and Billy Graham, and which gave inkers Klaus Janson and Bob McLeod some of their first professional exposure. The critically acclaimed series ran in Jungle Action #6-24 (Sept. 1973 – Nov. 1976).