8g - 9g - 10g
810au 820au 830au 840au 850au - 860au - 870au 880au 890au 900au 910au
860 861 862 863 864 - 865 - 866 867 868 869 870
- Abu Bakr Mohammad Ibn Zakariya al-Razi, ysgolhaig a gwyddonydd o Bersia
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