11. Switzerland
Years of independence: 722
The total population of Switzerland that ranked 11th on the list of oldest countries and nations in the world is something more than 2 million. In this country, as you are probably aware, there are three main ethnic groups: Germans (65%), French (18%) and Italians (10%). Because of it, some would say Switzerland doesn’t have a unique nation, while on the other hand, it exists even though it is consisted out of three main ethnic groups and many others.
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