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Boris I of Bulgaria

Bulgarian ruler

12 dated entries naming Boris I of Bulgaria, drawn from 12 separate years between 852 CE and 907 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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9th century

  • 852Presian I, ruler (khan) of the Bulgarian Empire, dies after a 23-year reign in which the Bulgarians have expanded into Upper Macedonia and Serbia. He is succeeded by his son Boris I, as monarch of Bulgaria.source
  • 853King Charles the Bald bribes Boris I, ruler (khan) of the Bulgarian Empire, to form an alliance against his brother Louis the German, with Rastislav of Moravia.source
  • 854Croatian–Bulgarian battle: Bulgarian Khan (later Knyaz) Boris I, attacks the Duchy of Littoral Croatia, ruled by Duke Trpimir I during the First Croatian-Bulgarian War. It is fought on the Croatian territory in the vicinity of the Croatian–Bulgarian border in present-day northeastern Bosnia and Herzegovina. None of the warring sides emerges victorious, Bulgarian forces retreat and finally both parties subsequently conclude a peace treaty.source
  • 863The Byzantine Empire invades Bulgaria in order to impose Orthodox Christianity on Boris I.source
  • 864The Christianization of Bulgaria begins: Boris I, Knyaz of the Bulgarian Empire, is converted to Orthodox Christianity. His family and high-ranking dignitaries accept the Orthodox faith at the capital, Pliska - from this point onwards the rulers of the Bulgarian Empire are known as ‘Tsars’ rather than ‘Khans’.source
  • 865Boris I, ruler (knyaz) of the Bulgarian Empire, suppresses a revolt, and orders the execution of 52 leading boyars, along with their whole families.source
  • 866Boris I, ruler (knyaz) of the Bulgarian Empire, sends a diplomatic mission, led by the Bulgarian nobleman Peter, to Rome, in an effort to renew ties with the West.source
  • 878April 16 – The city of Belgrade is first mentioned in a papal letter to Boris I, ruler (khan) of the Bulgarian Empire.source
  • 886Boris I, ruler (khan) of the Bulgarian Empire, establishes the Preslav and Ohrid Literary Schools.source
  • 889Boris I, ruler (khan) of the Bulgarian Empire, abdicates the throne after a 37-year reign, and retires to a monastery. He is succeeded by his eldest son Vladimir, as monarch of Bulgaria. Vladimir falls under the influence of the old boyars; many remain anti-Christian and anti-Byzantine. He attempts to restore the former Frankish alliance, and to reestablish paganism.source
  • 893Vladimir, ruler (khan) of the Bulgarian Empire, is dethroned by his father Boris I, with help from loyal boyars. He is blinded, and succeeded by his brother Simeon I, as prince of Bulgaria; the capital is moved from Pliska to Preslav. Simeon makes an alliance with the Pechenegs (or Patzinaks), a semi-nomad Turkic tribe from the Central Asian steppes.source

10th century

  • 907May 2 – Boris I, ruler (knyaz) of the Bulgarian Empiresource

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