The year 918 (CMXVIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.
Mar 1st Balderik becomes bishop of Utrecht
Sep 10th Arnulf I the Old becomes landsheer of Flanders
Taebong has been overthrown, and Goryeo established in the Korean peninsula, when Wang Kon ascends the throne at Cheorwon.
The Khitan empire’s government occupies a newly walled capital city called Shangjing, meaning “Supreme Capital”.