In the United States, miscegenation has referred primarily to the intermarriage between whites and non-whites, especially blacks.
Only in November 1864 was the pamphlet exposed as a hoax.
The hoax pamphlet was written by David Goodman Croly, managing editor of the New York World, a Democratic Party paper, and George Wakeman, a World reporter.
There was already much opposition to the war effort.
The pamphlet and variations on it were reprinted widely in both the north and south by Democrats and Confederates.
A contemporary usage of this metaphor was that of Ralph Waldo Emerson's private vision in 1845 of America as an ethnic and racial smelting-pot, a variation on the concept of the melting pot. S on the desirability of such intermixing, including that between white Protestants and Irish Catholic immigrants, were divided.
The term miscegenation was coined to refer specifically to the intermarriage of blacks and whites, with the intent of galvanising opposition to the war.
It purported to advocate the intermarriage of whites and blacks until they were indistinguishably mixed, as a desirable goal, and further asserted that this was the goal of the Republican Party.
The pamphlet was a hoax, concocted by Democrats, to discredit the Republicans by imputing to them what were then radical views that offended against the attitudes of the vast majority of whites, including those who opposed slavery.
Conversely, people classified in censuses as black, brown ("pardo") or indigenous have disadvantaged social indicators in comparison to the white population.