Answer:
Ethnic groups began to gain independence.
Explanation:
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.
Answer:
He gave the Dharma on the importance of life and the value of the present moment in his own words.
There must be provision for an adequate but sound currency.