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The 910s

258 sourced entries across 10 years, inside the 10th century. Each year below opens its own page; the lines under it are that year’s highest-ranked entries.

910 CE34 entries

  • June 12 – Battle of Augsburg: The Hungarians defeat the East Frankish army under King Louis IV (the Child), using the famous feigned retreat tactic of the nomadic warriors. Count Gausbert, the actual commander of the East Frankish army (because Louis IV is only 16 years old at this time), is killed in the battle.
  • June 22 – Battle of Rednitz: The Hungarians defeat the East Frankish army near the Rednitz River, killing its leader Gebhard, Duke of Lotharingia (Lorraine). After the battle Louis IV, together with the East Frankish duchies Franconia, Lotharingia, Bavaria and Saxony, agrees to pay tribute to the Hungarian state.
  • August 5 – Battle of Tettenhall: King Edward the Elder attacks the joint-Kings Eowils and Halfdan of Norse York. All three Viking monarchs are killed in battle (one chronicle mentions a third brother) and the Viking army is decisively defeated by allied forces of Mercia and Wessex. The co-Kings are succeeded by Ragnall ua Ímair.

911 CE21 entries

  • April 14 – Pope Sergius III dies at Rome after a 7-year reign. He is succeeded by Anastasius III as the 120th pope of the Catholic Church.
  • September 24 – King Louis IV (the Child), the last Carolingian ruler of the East Frankish Kingdom, dies at Frankfurt am Main after an 11-year reign. The East Frankish dukes elect Conrad I at Forchheim as the king of the East Frankish Kingdom. Charles III is elected as king of Lotharingia. Conrad is chosen through the influence of Louis' guardian and regent, Hatto I, archbishop of Mainz.
  • The Hungarians cross Bavaria, and invade Swabia and Franconia. They plunder the territories from Minfeld to Aargau. After that, they cross the Rhine, and attack Burgundy for the first time.

912 CE34 entries

  • July 18 – Emperor Taizu (Zhu Wen) is murdered in the imperial palace at Kaifeng by his eldest living son Zhu Yougui after a 5-year reign. He succeeds his father as the ruler of Later Liang.
  • October 16 – Abd al-Rahman III succeeds his grandfather Abdullah ibn Muhammad (after his execution) and becomes emir of Córdoba (Al-Andalus).
  • Lady Æthelflæd expands her policy by building defensive burghs at Shrewsbury and Bridgnorth. The fortifications are needed to protect Mercia against plundering Vikings from the Danelaw (Danish territory in England).

913 CE24 entries

  • June 6 – Emperor Alexander III dies of exhaustion while playing the game tzykanion (Byzantine name for polo). He is succeeded by his 8-year-old nephew Constantine VII Porphyrogennetos ("born in the purple"), a son of the late emperor Leo VI (the Wise). The government is administered by a regency council composed of Constantine's mother, Empress Zoe Karbonopsina, Patriarch Nicholas Mystikos and his guardian John Eladas.
  • August – Byzantine–Bulgarian War: Simeon I (the Great), ruler (knyaz) of the Bulgarian Empire, launches a campaign at the head of a large Bulgarian army, and reaches Constantinople unopposed. The Bulgarians besiege the Byzantine capital and construct ditches from the Golden Horn to the Golden Gate at the Marmara Sea.
  • San Miguel de Escalada is built in León (Northern Spain) by orders of King García I (approximate date).

914 CE36 entries

  • January 12 – Ahmad Samani, emir of the Samanid Empire, is murdered (decapitation) while sleeping in his tent at Bukhara (modern Uzbekistan) by some of his slaves. He is succeeded by his 8-year-old son, Nasr II, under the regency of Vizier Abu Abdallah al-Jayhani. The Abbasids try, in vain, to benefit from the turmoil to reconquer Sistan.
  • January 24 – The Fatimid general, Hubasa ibn Yusuf of the Kutama Berber tribe, marches out with his troops to invade Egypt. He follows the coastline, and takes possession of the only two towns of any size Syrte and Ajdabiya, without a struggle. The garrisons of the two towns—the westernmost outposts of the Abbasid Caliphate—have already fled.
  • July 11 – Al-Qa'im bi-Amr Allah, son of the Fatimid caliph Abdullah al-Mahdi Billah, leaves Raqqada at the head of an army, which is composed of Kutama warriors and the Arab jund (personal guard) in an attempt to conquer Egypt. He sends orders to Hubāsa to wait for him, but driven by ambition Hubāsa is already on his way to Alexandria.

915 CE23 entries

  • July – The Magyars (Hungarians), led by Zoltán, only son of the late Grand Prince Árpád, attack Swabia, Franconia and Saxony. Small units penetrate as far as Bremen, burning the city.
  • December 3 – John X crowns the Italian sovereign Berengar I as the Holy Roman Emperor in Rome. Berengar returns to northern Italy, where Friuli is threatened by the Hungarians.
  • Summer – Battle of Garigliano: The Christian League, personally led by Pope John X, lays siege to Garigliano (a fortified Arab camp in the area of Minturno), which is blockaded from the sea by the Byzantine navy. After three months of siege, plagued by hunger, the Saracens decide to break out of Garigliano and find their way back to Sicily by any means possible. Christian hunting parties fall on the fleeing Arabs, and all are captured and executed.

916 CE15 entries

  • Clement of Ohrid, Bulgarian scholar, writer and enlightener of the Slavs, dies. He is regarded as the first bishop of the Bulgarian Orthodox Church and the founder of the first Slavic Literary School. Clement is buried in his monastery, Saint Panteleimon, in Ohrid (modern North Macedonia).
  • Lady Æthelflæd, daughter of the late King Alfred the Great and the widow of Earl Æthelred of Mercia, sends an army into Brycheiniog to avenge the murder of the Mercian abbot Ecbryht and his companions. They seize and burn the royal fort of King Tewdr of Brycheiniog at Llangorse Lake (Wales), and take the queen and thirty-three others captive.
  • Sicilian Berbers in Agrigento revolt and depose the independent Emir Ahmed ibn Khorob. They offer Sicily to the Fatimid Caliphate in Ifriqiya (modern Tunisia). Caliph Abdullah al-Mahdi Billah welcomes this turn of events, but refuses to grant the Berber rulers their autonomy. He sends a Fatimid expeditionary force under Abu Said Musa which lands in Sicily and, with some difficulty, takes control of the island. Abdullah al-Mahdi Billah appoints Salam ibn Rashid as the emir of Sicily. Ahmed ibn Khorob is dispatched to Raqqada and executed.

917 CE25 entries

  • August 20 – Battle of Achelous: A Byzantine expeditionary force (62,000 men) under General Leo Phokas (the Elder) is routed by the Bulgarians at the Achelous River near the fortress of Anchialos (modern Pomorie) on the Black Sea coast. Phokas flees to Mesembria (modern Nesebar) and escapes by boarding a ship. Tsar Simeon I (the Great) becomes de facto ruler of the whole Balkan Peninsula, except the well-protected Byzantine capital of Constantinople and the Peloponnese.
  • September 5 – The Great Yue Kingdom, later renamed Southern Han, is founded by Liu Yan, former governor and military advisor, in Panyu (modern Guangdong) and Guangxi. Liu Yan declares himself emperor, and gives his niece Liu Hua in marriage to Wang Yanjun, a son of his rival Wang Shenzhi (Prince of Min), to cement a relationship between the two states.
  • Battle of Tempsford: The English army led by Edward the Elder defeats the Danish Vikings at Tempsford. They storm the fortified burh and kill King Guthrum II of East Anglia, along with the Danish Jarls Toglos and Manna.

918 CE20 entries

  • June 12 – Æthelflæd dies at Tamworth while campaigning against the Vikings. She is buried with her husband Æthelred in St. Oswald's Priory at Gloucester. Æthelflæd is succeeded by her only daughter Ælfwynn.
  • July 25 – Wang Kon, a Korean general, overthrows the government of the short-lived state Ho Goguryeo and ascends the throne at Cheorwon. He founds the Goryeo dynasty and makes Song'ak his capital.
  • December 23 – King Conrad I, injured at one of his battles with Arnulf I (the Bad), dies at his residence in Weilburg Castle after a 7-year reign. On his deathbed Conrad persuades his younger brother Eberhard III to offer the East Frankish crown to Henry the Fowler, the duke of Saxony. Conrad is buried in Fulda Cathedral (also the burial place of Boniface) in Germany.

919 CE26 entries

  • April 5 – The Fatimid Caliphate of Ifriqiya (modern-day Tunisia) launch the second Fatimid invasion of Egypt (919–921) in an attempt to seize Egypt from its Abbasid rulers. The expedition fails and the Fatimids will be forced to retreat.
  • May 24 – The nobles of Franconia and Saxony elect Henry the Fowler at the Imperial Diet in Fritzlar as ruler of the East Frankish Kingdom. He recognizes the stem duchies (uniting them in a German confederation) and all their sovereign privileges. Two of the four most influential duchies, Bavaria and Swabia, do not accept his rule. Henry fortifies Magdeburg against the Magyars.
  • September 14 – Battle of Islandbridge: High King Niall Glúndub is killed while leading an Irish coalition against the Dublin-based Vikings of Uí Ímair, led by King Sitric Cáech.