Some latter-day writers deplore the enormous immigration to our shores as making us a heterogeneous instead of a homogeneous people; but as a matter of fact we are less heterogeneous at the present day than we were at the outbreak of the Revolution. Our blood was as much mixed a century ago as it is now. No State now has a smaller proportion of English blood than New York or Pennsylvania had in 1775. Even in New England, where the English stock was purest, there was a certain French and Irish mixture; in Virginia there were Germans in addition. In the other colonies, taken as a whole, it is not probable that much over half of the blood was English; Dutch, French, German, and Gaelic communities abounded.
But all were being rapidly fused into one people. As the Celt of Cornwall and the Saxon of Wessex are now alike Englishmen, so in 1775 Hollander and Huguenot, whether in New York or South Carolina, had become Americans, undistinguishable from the New Englanders and Virginians, the descendants of the men who followed Cromwell or charged behind Rupert. When the great western movement began we were already a people by ourselves. Moreover, the immense immigration from Europe that has taken place since, had little or no effect on the way in which we extended our boundaries; it only began to be important about the time that we acquired our present limits. These limits would in all probability be what they now are even if we had not received a single European colonist since the Revolution.