Warlord of Mars by Edgar Rice Burroughs was first published in 1913. It was the third book in an eleven part series known as the Barsoom Chronicles which relate to a sequence of exciting adventure tales set on the fictional planet of Barsoom. In the Barsoom series, Mars, assumed to be older than Earth, is a dying planet. “Barsoom” is the native word for Mars in the Martian language. The stories first appeared in serialized form in various magazines like All-Story, Argosy, Amazing Stories and ...