Rashidun Caliphate

The Rashidun Was the Secend of the 4 orignanal chaliphites

Abu Bakers Rule, 642-644
After Muhamed Died. Abu baker sucseaded him and would expand into the Fringe provinces of the Sassanid and Eastern Roman Empires.

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Credicts
https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Rashidun_Caliph_Abu_Bakr