The race of the future is a theoretical composite race which will result from ongoing racial admixture.
Richard von Coudenhove-Kalergi in 1925 in Practical Idealism predicted: "The man of the future will be of mixed race. Today's races and classes will gradually disappear owing to the vanishing of space, time, and prejudice. The Eurasian-Negroid race of the future will replace the diversity of peoples with a diversity of individuals." The same scenario had been envisaged, with rather less enthusiasm, by Madison Grant in his 1916 The Passing of the Great Race, calling for a eugenics program to prevent this development, and in a similar ideological context in Lothrop Stoddard's The Rising Tide of Color Against White World-Supremacy in 1920.
Gottfried de Purucker was an author and theosophist who, when asked about intermarriage in 1930, said "In answering your question very briefly, I can say simply this, that the time has not come when I would willingly suggest intermarriage; but I am in honesty bound to qualify that by saying that the race of the future will be a composite, composed of the many different races on earth today. Let us also remember that all men are ultimately of one blood."
The word miscegenation was used in an anonymous propaganda pamphlet printed in New York City in late 1863, entitled Miscegenation: The Theory of the Blending of the Races, Applied to the American White Man and Negro. The pamphlet purported to be in favor of interbreeding of whites and blacks until the races were indistinguishably mixed as mulattos, claiming that this was the goal of the United States Republican Party. The real authors were David Goodman Croly, managing editor of the New York World, a Democratic Party paper, and George Wakeman, a World reporter. The pamphlet soon was exposed as an attempt to discredit the Republicans, the Lincoln administration, and the abolitionist movement by exploiting the fears and racial biases common among whites. Nonetheless, this pamphlet and variations on it were reprinted widely in communities on both sides of the American Civil War by opponents of Republicans.