continental drift. noun. geology. the theory that the earth's continents move gradually over the surface of the planet on a substratum of magma. The present-day configuration of the continents is thought to be the result of the fragmentation of a single landmass, Pangaea, that existed 200 million years ago.
The Wonderful Wizard of Oz is an American children's novel written by author L. Frank Baum and illustrated by W. W. Denslow, originally published by the George M. Hill Company in Chicago on May 17, 1900.
The story describes the life of the Wicked Witch and other events prior to Dorothy's arrival. For the film's 56th anniversary, a 1987 stage show also titled The Wizard of Oz was based upon the 1939 film and the book by L. Frank Baum.