+623 was a [common year](/wiki/Common_year) in the [Julian calendar](/wiki/Julian_calendar), witnessing continued early Islamic expansion from the Arabian Peninsula. Across the world, nascent empires continued to shape political landscapes and cultural identities.
+## See also
+- [7th Century](/wiki/7th_Century)
+- [Islam](/wiki/Islam)
+- [Byzantium](/wiki/Byzantium)
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