Answer:
the Abbasids
Explanation:
In 750, the Abbasids, a rival clan to the Umayyads, rose to power and overthrew the Umayyad Caliphate. They took control and formed the Abbasid Caliphate which would rule much of the Islamic world for the next several hundred years.
There were positive effects as well as negative effects.<span>
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The main appeal for the indenture contract for someone looking for work was that it was short time period compared to the amount of money exchanged. When people started sailing over the "New World", young people who have enough money would ask people or specifically rich families to work for families for no pay.