As cryptically referred to by the villain in the perhaps most famous of American novels. Credit Wikipedia:
> Grant became a part of popular culture in 1920s America. Author F. Scott Fitzgerald made a lightly disguised reference to Grant in The Great Gatsby. In the book, the character Tom Buchanan reads a book called The Rise of the Colored Empires by "this man Goddard", a combination of Grant and his colleague Lothrop Stoddard. ...
> ... "Everybody ought to read it", the character said. "The idea is if we don't look out the white race will be — will be utterly submerged. It's all scientific stuff; it's been proved."
> Grant became a part of popular culture in 1920s America. Author F. Scott Fitzgerald made a lightly disguised reference to Grant in The Great Gatsby. In the book, the character Tom Buchanan reads a book called The Rise of the Colored Empires by "this man Goddard", a combination of Grant and his colleague Lothrop Stoddard. ...
> ... "Everybody ought to read it", the character said. "The idea is if we don't look out the white race will be — will be utterly submerged. It's all scientific stuff; it's been proved."