The Arabian peninsula is mostly desert with very few oases. People were organized into tribes and clans that were lead by Byshiekhs. Tribes fought for the oases and trading that was there.
After mauhamad
Muhammad was a prophet, a teacher who is inspired by god. As a young man he gained a reputation for being nice and intelligent. One time Muhammad prayed in a cave only to here gods voice.
how they treated non musilims
Islamic people pray 5 time's a day. Muslim's had to be able to point to towards the holy city of Mecca no madder were they were at. Muslim's will only eat meat from animal's killed in a humane way.
Umayyads
When Muhammad died Arabia almost collapsed, because Muhammad never appointed a successor, but things got better when they had Muhammad
They treated non Muslims different they didn't think they did the same religion.
They split to two divisions because they thought that the capital was too far away so they split to two division's.