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  The Western Roman Empire got replaced by Christianity.
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  The Khulafa - e - Rashidin expanded the Islamic rule.
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  After the Khulafa - e - Rashidin the Ummayad got control.
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  Abbasids moved their government to Iraq where they foud Baghdad which later became their capital and got famous.
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  They were based in Egypt and their capital Cairo.
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  They were of Turko - Persian and they were based in Turkey.
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  This place was founded by Nuruddin Zengi and it was based in Syria.
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  Abbasid dynasty ended by the mongol Halagu Khan and his army.
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  Byzantine Empire got defeated by Ottoman Empire, by Mehmet II.
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  This time was called Dark Ages because there was no civilized life at that time.
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  Mamluk means slave in Arabic.