Passage: Tarzan of the Apes was adapted in newspaper strip form, in early 1929, with illustrations by Hal Foster. A full page Sunday strip began March 15, 1931 by Rex Maxon. Over the years, many artists have drawn the Tarzan comic strip, notably Burne Hogarth, Russ Manning, and Mike Grell. The daily strip began to reprint old dailies after the last Russ Manning daily (#10,308, which ran on July 29, 1972). The Sunday strip also turned to reprints circa 2000. Both strips continue as reprints today in a few newspapers and in Comics Revue magazine. NBM Publishing did a high quality reprint series of the Foster and Hogarth work on Tarzan in a series of hardback and paperback reprints in the 1990s.

Question: When did the full Sunday strip of Tarzan of the Apes started?
March 15, 1931