Burroughs soon took up writing full-time and by the time the run of Under the Moons of Mars had finished he had completed two novels, including Tarzan of the Apes, published from October 1912 and one of his most successful series.
Burroughs also wrote popular science fiction and fantasy stories involving Earthly adventurers transported to various planets (notably Barsoom, Burroughs's fictional name for Mars, and Amtor, his fictional name for Venus), lost islands, and into the interior of the hollow earth in his Pellucidar stories, as well as westerns and historical romances. Along with All-Story, many of his stories were published in The Argosy magazine.
Tarzan was a cultural sensation when introduced. Burroughs was determined to capitalize on Tarzan's popularity in every way possible. He planned to exploit Tarzan through several different media including a syndicated Tarzan comic strip, movies and merchandise. Experts in the field advised against this course of action, stating that the different media would just end up competing against each other. Burroughs went ahead, however, and proved the experts wrong – the public wanted Tarzan in whatever fashion he was offered. Tarzan remains one of the most successful fictional characters to this day and is a cultural icon.
In either 1915 or 1919, Burroughs purchased a large ranch north of Los Angeles, California, which he named "Tarzana." The citizens of the community that sprang up around the ranch voted to adopt that name when their community, Tarzana, California was formed in 1927. Also, the unincorporated community of Tarzan, Texas, was formally named in 1927 when the US Postal Service accepted the name, reputedly coming from the popularity of the first (silent) Tarzan of the Apes film, starring Elmo Lincoln, and an early "Tarzan" comic strip.