What the title says. We're all human mutts tbf, and all of our ancestors moved around over the time period humans have been existing. I have mainly European ancestry (don't take DNA tests, just do family tree) and the nationalities and ethnic groups I've come across have been: Irish, Polish, Ukrainian, French, Spaniard, Portuguese, German, Swiss, English, Scottish, French Canadian, English Canadian, European American. Ethnic groups: Slavic, Alpine, Scots-Irish, Anglo-Saxon, Hispanic (European) Jewish (European), French, Germanic. I cannot research too much because ancestry.com tells me I have to pay for a subscription and I'm poor.