Question

plz answer it do in brief
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Answer 1

Answer:

Historically, the caliphates were polities based on Islam which developed into multi-ethnic trans-national empires. During the medieval period, three major caliphates succeeded each other: the Rashidun Caliphate (632–661), the Umayyad Caliphate (661–750), the Abbasid Caliphate (750–1258).