Of course they can - and do.
If they were born in American or become American citizens, then they are Americans.
We don't take any oath on Australia Day, only to-be citizens of Australia take an oath when they become Australian.
Native Americans could become U.S. citizens if they gave up affiliation with their tribe
The requirement that was necessary for African Americans to become citizens undr the fourtheenth amendment was that they had to be born in the U.S.
Native Americans could become U.S. citizens if they gave up affiliation with their tribe
to become citizens of mexico
because they aren't real Americans
During the early 1800s Study Island:Native Americans were not allowed to become U.S. citizens.
They were not "Americans" in the political sense...meaning, they were not citizens of the country of the Unites States of America. They were "Americans" in the sense that they were native to the continent of North America, which at that time, most of which was not controlled by any government.
No. The selection criteria for any if the Australian of the Year awards clearly stipulates that nominees must be citizens of Australia. They can have migrated from other countries, but they must have become Australian citizens in order to be nominated.
I can state definitely that Americans can become Canadian citizens; I myself was an American, born in New York, and I am now a Canadian citizen. This does not, of course, mean that every American can become a Canadian citizen. Canada, like any other country, has specific citizenship requirements, and immigration requirements. Not everybody qualifies. But some do.