Permanent historical records · Updated 2026-11-03

866 in Bulgaria

Explore 1 historical events and records for Bulgaria in 866.

Historical records for Bulgaria in 866

Sorted by month and day. Records with no month are shown last. Showing 1 of 1 unique records.

1Unique records
1 of 1Page
1Named events on this page
1Named people on this page
1Places on this page

Other events (month unknown)

Conversion

Boris I · Sofia · House / House of Krum

Forced by Emperor Michael III to convert himself & his subjects to Christianity

How these records were prepared

Generated from the World History Database historical_events table. Identical display records are collapsed; descriptions otherwise retain the stored text. Coverage and source quality vary. Check primary and specialist sources before citing individual historical claims.