Succession
Succeeds as Tsar of Bulgaria
Role range: 0852-0889
Historical biography archive · Updated 2026-11-03
Boris I Biography and Timeline
Follow Boris I through 2 dated historical records for Bulgaria.
Boris I, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
582–866Years on this page
582
866
Conversion
Forced by Emperor Michael III to convert himself & his subjects to Christianity
Role range: 0852-0889
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.