803
Year 803 was a common year starting on Sunday of the Julian calendar.Events
By place
- Emperors Nikephoros I and Charlemagne settle their imperial boundaries in the Adriatic Sea, and sign the Pax Nicephori. The Byzantines retain control of the coastal cities and islands in Dalmatian Croatia, while Frankish rule is accepted over Istria and the Dalmatian hinterland. Venice is recognized as independent by the Byzantine Empire.
- Summer - Bardanes Tourkos, Byzantine general, is proclaimed emperor by the troops of the Anatolic, Opsikion, Thracian and Bucellarian themes. The 'rebel' army marches to Chrysopolis, a suburb of Constantinople. After the defection of two of his trusted aids, future emperors Leo the Armenian and Michael the Amorian, Bardanes negotiates peace.
Europe
- May - Krum, ruler of the Bulgarian Empire, begins his territorial expansion and raids the Byzantine northern frontier. He leads his warriors — mostly Bulgars, Slavs, Thracians and Macedonians — across the Carpathian Mountains, over the Danube River, and throughout Transylvania, Thrace, and Macedonia.
- St. Peter Stiftskulinarium, possibly Central Europe's oldest restaurant, is founded in Salzburg, Austria.
Abbasid Caliphate
- Downfall of the Barmakids: Caliph Harun al-Rashid has his friend Ja'far ibn Yahya beheaded, possibly for having an affair with his sister Abassa. The surviving members of the influential Barmakid family are imprisoned on the orders of Harun, and their property is confiscated.
By topic
Religion
Births
