upright=1.35|thumb|Anglo-Saxon kingdoms in Britain (7th century) upright=1.35|thumb|Empress Wu Zetian (c. 625–705) __NOTOC__ Year 690 (DCXC) was a common year starting on Saturday of the Julian calendar. The denomination 690 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
upright=135|thumb|Anglo-Saxon kingdoms in Britain (7th century) upright=135|thumb|Empress Wu Zetian (c 625–705) __NOTOC__ Year 690 (DCXC) was a common year starting on Saturday of the Julian calendar The denomination 690 for this year has been used since the early medieval period when the Anno Domini calendar era became the prevalent method in Europe for naming years