866Invasion of BulgariaMichael III the Drunkard
Forces Boris I & his subjects to convert to Christianity
Historical records for Roman Empire in 866, rendered directly from the World History Database and ordered by month, day and event.
Forces Boris I & his subjects to convert to Christianity
Succeeds as Emperor of Rome, joint ruler with Michael III, 866-867
This page is generated from stored World History Database records matching the exact country and year shown above. Exact duplicate display records are collapsed. Records without a month are listed after the monthly sections. Source provenance varies by record; formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.