Wikipedia’s article on the “melting pot” is interesting. Here’s a quote from J. Hector St. John de Crevecour:
“…whence came all these people? They are a mixture of English, Scotch, Irish, French, Dutch, Germans, and Swedes… What, then, is the American, this new man? He is neither a European nor the descendant of a European; hence that strange mixture of blood, which you will find in no other country. I could point out to you a family whose grandfather was an Englishman, whose wife was Dutch, whose son married a French woman, and whose present four sons have now four wives of different nations. He is an American, who, leaving behind him all his ancient prejudices and manners, receives new ones from the new mode of life he has embraced, the new government he obeys, and the new rank he holds. . . . The Americans were once scattered all over Europe; here they are incorporated into one of the finest systems of population which has ever appeared.”− J. Hector St. John de Crevecoeur, Letters from an American Farmer.
And from a magazine article in 1875:
“The fusing process goes on as in a blast-furnace; one generation, a single year even– transforms the English, the German, the Irish emigrant into an American. Uniform institutions, ideas, language, the influence of the majority, bring us soon to a similar complexion; the individuality of the immigrant, almost even his traits of race and religion, fuse down in the democratic alembic like chips of brass thrown into the melting pot.”
And Henry James:
“Understand that America is God’s Crucible, the great Melting-Pot where all the races of Europe are melting and re-forming! Here you stand, good folk, think I, when I see them at Ellis Island, here you stand in your fifty groups, your fifty languages, and histories, and your fifty blood hatreds and rivalries. But you won’t be long like that, brothers, for these are the fires of God you’ve come to – these are fires of God. A fig for your feuds and vendettas! Germans and Frenchmen, Irishmen and Englishmen, Jews and Russians—into the Crucible with you all! God is making the American.”