Ibn Al-Haytham was a famous muslim scholar whose works spanned many fields. He was a surgeon, doctor, but also a philosopher, mathematician, and astronomer. He was truly a great mind who significantly contributed towards the life we have today.
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.
How did women's roles in the workforce change during World War I? Women entered the industrial workforce for the first time. Women replaced men as workers in factories. Women fought in the war alongside men.
As far as social class, the King had the greatest amount of power in Europe, Nobles came second.
