The omphalos hypothesis was named after the title of an 1857 book, Omphalos by Philip Henry Gosse, in which Gosse argued that in order for the world to be "functional", God must have created the Earth with mountains and canyons, trees with growth rings, Adam and Eve with hair, fingernails, and navels (omphalos is Greek for "navel"), and that therefore no evidence that we can see of the presumed age of the earth and universe can be taken as reliable. The idea has seen some revival in the twentieth century by some modern creationists, who have extended the argument to light that appears to originate in far-off stars and galaxies, although many other creationists reject this explanation[1] (and also believe that Adam and Eve had no navels).[2]