How do people know the names of uncontacted tribes if they’re uncontacted/speak a language foreign to most people?

Question

How do people know the names of uncontacted tribes if they’re uncontacted/speak a language foreign to most people?

In: Culture

Answer 1

Lots of ways:

1. uncontacted tribes often know of the outer world, and people leave.
2. uncontacted tribes are often known to other tribes.
3. names are assigned by the discoverer, not the tribe themselves.
4. they are sometimes not truly uncontacted – e.g. past generations did make contact, but then they are left alone.