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![Caliphate](https://www.hachettebookgroup.com/wp-content/uploads/2017/06/9780465094387.jpg?w=188)
Caliphate
![The Great Arab Conquests](https://www.hachettebookgroup.com/wp-content/uploads/2017/06/9780306817403.jpg?w=190)
The Great Arab Conquests
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When Baghdad Ruled the Muslim World
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Caliphate
The Great Arab Conquests
When Baghdad Ruled the Muslim World