[Michael81Dus]

I was speaking of the 40´s, and of German-Americans PLUS Italian-Americans. I think they were definitely more than just a quarter of the American nation, but maybe a half would be too many, either.

[muawiyah]

It's still about one-quarter ~ even the French are only about one-eighth.

Remember, we had massive Eastern European immigration in the late 1800s and coincident with the Italian flow in the 1920s.

In earlier times 90% of Ireland, Scotland, Manx, Brittany, Wales, Cornwall and Galicia emigrated to America, Canada, Australia, New Zealand and South Africa.

At least half the population base of this country benefited from those earlier mass migrations.

[Jedi Master Pikachu]

Today, German is supposed to be the largest ethnicity in the United States (though all Americans should be ethnically American). However, there is some debate whether this is because the British are split into English, Welsh, Irish, Scottish, Scots-Irish, etc. And now the percentage of Mexican and other Latino ethnicities is growing (legally, too), along with other nationalities from Africa and Asia.