+**661** was a year that echoed with change in the [Early Middle Ages](/wiki/Early_Middle_Ages). It witnessed pivotal shifts in the nascent Muslim world, marking the end of the [Rashidun Caliphate](/wiki/Rashidun_Caliphate) and the dawn of a new era.
+## See also
+- [Umayyad Caliphate](/wiki/Umayyad_Caliphate)
+- [Islamic History](/wiki/Islamic_History)
+- [Seventh Century](/wiki/Seventh_Century)
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