If I may note, it appears that us Swedish-Americans, of all the national European ethnic groups, made the largest intellectual contributions to America on a per capita basis—not that the Jews, the Indians, and the Chinese haven't us beat handily. See Who's Who in Science.
PS: This of course calls to mind one of my favorite Milton Friedman anecdotes. When, as he frequently was, confronted by Swedish socialists who informed him that
In Sweden, we have abolished poverty! he'd respond
Well, so we have in America ... among Swedes!