One hundred years ago, in 1912, the February issue of All-Story magazine featured the first part of the story Under the Moon of Mars by Norman Bean. This was the first novel of an unknown writer, Edgar Rice Burroughs, born in 1875. For serial publication, Burroughs used the pen name “Normal Bean,” chosen as a type of pun to stress that he was in his right mind, as he feared ridicule for writing such a fantastic story. The effect was spoiled when a typesetter interpreted “Normal” as a typographical error and changed it to “Norman.”
Some months later, in October 1912, Burroughs published in the same magazine Tarzan of the Apes. Under the Moon of Mars will be known later as A Princess of Mars.
infos from wikipedia