It seems my mission here is to bring to your attention unfamiliar and unfashionable truths about American history. Let me give you another one. The American West, the frontier, was NOT conquered and settled by a “Nation of Immigrants.” George Washington was already the fifth generation of his family in Virginia, as were most of his neighbours. There was a wave of Scots-Irish immigration before the Revolution. Thereafter, for almost a century, there was a trickle of immigrants but no wave. Not until the late 1840s, with the Irish potato famine and the Continental revolutions of 1848, was there another...