Nomads is the right answer.
Anyone who moves from one place to another rather residing in one place is called the nomads. There can be many reasons for the migration of the nomads such as herders change places because of the weather( that is not suitable for their animals). whereas, other nomads including that of the traders and merchants, travels move for exchanging of their goods.
The Patriot Act was highly controversial because it restricted and limited many American freedoms, such as Habeas Corpus. It also enacted a number of surveillance measures.
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Runes are the letters of the alphabet used by the Norse Vikings (located in northern Europe).
India
It's India because they needed vast caste system.
