What role does the hijra play in the development of Islam?
What was the capital of the Abbasid caliphate?
made using the collective google doc (https://docs.google.com/document/d/1kyU0kg9GOTaPsv9XMQ7Qgv37kPT_XAEBeLTy_wTUcmk/edit?usp=sharing), for the islam summer assignment at township