Calendar overview 917
Simeon I of Bulgaria
defeats the Byzantines in the battle of Achialus .
|917 in other calendars|
|Armenian calendar||365/366 (turn of the year July)|
|Buddhist calendar||1460/61 (southern Buddhism); 1459/60 (alternative calculation according to Buddha's Parinirvana )|
|Chinese calendar||60th (61st) cycle|
|Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam)||279/280 (turn of the year April)|
|Islamic calendar||304/305 (turn of the year 23/24 June)|
|Jewish calendar||4677/78 (September 19-20)|
from urbe condita MDCLXX (1670)
Diocletian's era : 633/634 (New Year November)
|Seleucid era||Babylon: 1227/28 (turn of the year April)
Syria: 1228/29 (turn of the year October)
|Vikram Sambat (Nepalese Calendar)||973/974 (turn of the year April)|
Politics and world events
- August 20 : Tsar Simeon the Great of Bulgaria invades Thrace and destroys the Byzantines in the battle of Achialus . A little later he was crowned emperor of the Bulgarians and Rhomeans . After this defeat, the Byzantine Empire fell on the defensive against the Bulgarian Empire for almost 80 years and had to pay an annual tribute to Simeon.
- The Bulgarians under Simeon I defeat the Byzantines under Leon Phokas again in the battle of Katasyrtai .
Other events in Europe
- September 4th : In the battle of San Esteban de Gormaz on the Iberian peninsula, King Ordoño II of León and Galicia defeated the troops of the emir Abd ar-Rahman III, who had broken out from the emirate of Córdoba .
- Viking Age : Anglo-Saxons under King Edward the Elder defeat Danish Vikings at the Battle of Tempsford .
- The Magyars attack Basel and destroy the city.
First documentary mentions
- According to legend, the Polish city of Skoczów was founded.
- Kirtorf is first mentioned in a document.
- The Lombard community of Santa Brigida is first mentioned in a document.
- al-Jassās , Hanafi scholar in Baghdad (d. 981 )
- Theophylaktos Lakapenos , Patriarch of Constantinople († 956 )
Date of death secured
- 2. / 3 January : Robert I , Bishop of Metz
- January 21 : Erchanger , Duke of Swabia (* around 880 )
- February 10 : Frederuna , Queen of Western France (* around 887 )
- August 5th : Euthymios I , Patriarch of Constantinople
- November 29th : Radbod , Bishop of Utrecht (* around 850 )
Exact date of death unknown
- Augaire mac Ailella , King of the Irish Kingdom of Leinster
- ʿUmar ibn Hafsūn , leader of an uprising in Al-Andalus (* around 850 )