it is not only the Arabs that benefited from Muhammad pbuh's teaching but it is the whole mankind that has benefit
because Muhammads was messenger of god and he could get any success.
HAZRAT MUHAMMAD {p.b.h} followers are called Muslim. See related question below for more information.
they were very irritated by the fact that someone was telling them what to do
that there is only one god and that God was Allah
because they did not like the concept of only one GOD It is not true to say that the Arabs didn't like the teachings of Islam. Many of the wise Arabs embraced Islam. It was the chiefs like Abu Jahl, Rabbia, Utba, Sheeba, Abu Lahb and a few others who resisted. It was because their authority was being challenged. But within two decades the Arabs not only accepted Islam, they fought for the cause of Islam and even laid their lives for it.
Mecca, in Arabia.
He was Shepherd
Hamza
570-632
His wife Khadijah
It was boring
Find something that you can do well, that you enjoy doing, that benefits you and is of benefit to others.