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Events on Tuesday 9 August 833 1
786 – 833Al-Ma'mun (786-833)Died 9 August 833, aged 46Al-Ma'mun died near Tarsus while leading a military campaign against the Byzantine Empire. As the seventh Abbasid caliph, he had sponsored the translation movement and founded the House of Wisdom in Baghdad, promoting the study of Greek philosophy and science. He was succeeded by his brother al-Mu'tasim.