    __notoc__ year 863 (dccclxiii) was a common year starting on friday (link will display the full calendar) of the julian calendar. == events == === by place === ==== europe ==== * constantine i succeeds as king of scotland (or 862). * after the death of their brother charles, lothair ii takes part of the jura and louis ii takes the provence. * carloman revolts against his father louis the german a second time. * the first written record of smolensk. * the christianization of the rus' khaganate begins ceasing the dominance of the 63 year long rus' khaganate. ==== asia ==== * september 3 &ndash; at the battle of lalakaon, the east roman (byzantine) empire annihilates an arab force led by omar, emir of melitene. in conjunction with another victory over the arabs in armenia, it marks the beginning of the empire's resurgence, and its counteroffensive against the forces of islam in the arabâbyzantine wars. * the tang dynasty chinese author duan chengshi writes about chinese maritime trade in east africa, and the arab-run slave trade there. === by topic === ==== religion ==== * byzantine missionaries saints cyril and methodius come to great moravia upon a request of prince rastislav. * pope nicholas i excommunicates patriarch photios i of constantinople. == births == * == deaths == * ali ibn yahya al-armani, abbasid governor of armenia and azerbaijan * duan chengshi * karbeas, leader of the paulicians * umar al-aqta, emir of melitene == references ==  
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