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The 970s

285 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.

970 CE38 entries

  • The oldest preserved document (by Otto I) mentions Leibnitz in Styria (modern Austria).
  • Emperor John I delegates the war in the Balkans to his brother-in-law, the Domestic of the Schools Bardas Skleros, and to the eunuch general Peter Phokas, who begin to gather a Byzantine army in Thrace. At the news of this, a powerful Kievan expeditionary force (30,000 men), along with many Bulgarians and a Pecheneg contingent, is sent south over the Balkan Mountains. After sacking the Bulgarian stronghold of Philippolis (modern-day Plovdiv), they bypass the heavily defended city of Adrianople, and turn towards Constantinople.
  • Construction is completed on Al-Azhar Mosque in Cairo, Egypt (the world's oldest Islamic university).

971 CE26 entries

  • The grave of Swithun, Anglo-Saxon bishop of Winchester, is moved into an indoor shrine (he was previously buried outside) in the Old Minster. The ceremony is said to have been marred by 40 days of torrential rain.
  • Emperor Aditya Chola II, co-regent of the Chola dynasty (modern India), is murdered and succeeded by Uttama. Due to his immaturity, Arunmozhi Varman becomes the heir apparent.
  • King Cuilén (or Cuilean) is killed by Britons after a 6-year reign. He is succeeded by his nephew Kenneth II, as ruler of Alba (Scotland). He will not be sole king until 977.

972 CE29 entries

  • April 14 – Otto II (the Red), joint-ruler and son of Otto I (the Great), marries the Byzantine princess Theophanu (niece or granddaughter of John I). She is crowned empress by Pope John XIII at Rome. Creating an alliance between the Ottonian Dynasty and the Byzantine Empire (called the Tzimiscian Peace).
  • June 24 – Battle of Cedynia: The Polans under prince (or Duke) Mieszko I, defeat the German forces of the Saxon count Odo I at their stronghold in Cedynia (with the help of hidden reinforcements). The battle – one of the first in Polish history – strengthens Mieszko's hold over Western Pomerania.
  • September 6 – John XIII dies at Rome after a 6-year reign. He is succeeded by Benedict VI as the 134th pope of the Catholic Church.

973 CE28 entries

  • January 19 – Pope Benedict VI is consecrated as the 134th pope of the Catholic Church. He is installed at Rome with the approval of Otto I and becomes a puppet ruler of the Holy Roman Empire. The Roman aristocracy resents Otto's dominance in Roman civil and ecclesiastical affairs.
  • May 7 – Emperor Otto I (the Great) dies at Memleben in Thuringia (modern Germany) after a 37-year reign. He is succeeded by his 18-year-old son Otto II (the Red), who becomes absolute ruler of the Holy Roman Empire. His mother Adelaide will exert great influence on Otto, although her lavish philanthropies will be a source of contention. Otto's succession leads to conflicts in the south German duchies and in Lotharingia.
  • In the Council of Winchester, Edgar I accepts a 'Monastic Agreement' (called the Regularis Concordia). The document is compiled by Bishop Æthelwold and serves as a rule for how monastic life should be performed.

974 CE24 entries

  • 5 August – Caliph al-Muti, ill and incapacitated, is deposed and succeeded by his son al-Ta'i, dying shortly after.
  • The Liao Dynasty exchanges ambassadors with the Song Dynasty on New Years Day (Spring Festival).
  • An offensive, by the Spain-based Caliphate of Córdoba brings the Maghrebi Idrisid Dynasty to an end. Caliph Al-Hakam II maintains the supremacy of the caliphate over the kingdoms of Navarra, Castile and León.

975 CE32 entries

  • July 8 – King Edgar I (the Peaceful) dies at Winchester after a 16-year reign. He is succeeded by his 12-year-old son Edward the Martyr as ruler of England.
  • October 15 – Oberto I (Obizzo), an Italian count palatine, dies. The Marca Obertenga (Eastern Liguria) is divided among the Obertenghi family.
  • December 21 – Caliph Al-Mu'izz dies in Egypt after a 22-year reign in which he has extended his realm from Sicily to the Atlantic. He is succeeded by his son Al-Aziz Billah as ruler of the Fatimid Caliphate.

976 CE21 entries

  • January 10 – Emperor John I Tzimiskes dies at Constantinople, after returning from a second campaign against the Abbasids in Syria. He is buried in the Church of Christ Chalkites, and succeeded by his 18-year-old nephew Basil II, who becomes sole ruler of the Byzantine Empire. The administration remains in the hands of Basil Lekapenos (an illegitimate son of the late Emperor Romanos I).
  • June – Emir Abu'l-Qasim launches a raiding expedition into Byzantine Italy from Sicily. He imposes a tribute on the cities of Cosenza and Cellere. Meanwhile, a Fatimid fleet assaults the Apulian coast and raids the surrounding countryside. Abu'l-Qasim sends an army to Otranto and besieges Gravina, before returning to Sicily – bringing home hundreds of captives and slaves.
  • October 16 – Caliph Al-Hakam II dies after a 15-year reign in which he has ended the Fatimid Caliphate in Morocco and made the University of Córdoba the greatest institution in the world. Al-Hakam is succeeded by his 10-year-old son Hisham II as ruler of the Caliphate of Córdoba. His widow Subh becomes regent together with Almanzor the de facto rulers.

977 CE28 entries

  • May – Boris II, dethroned emperor (tsar) of Bulgaria, and his brother Roman manage to escape from captivity in Constantinople. They reach the Bulgarian border, but Boris is killed by mistake by the border guards. Roman is crowned as new ruler, although leadership and the control of the army remain in the hands of General Samuel (a member of the Cometopuli Dynasty).
  • August – Otto II appoints his cousin Charles, illegitimate son of the late King Louis IV (d'Outremer), as duke of Lorraine. King Lothair III – who claims the duchy as his own territory – declares war to the Holy Roman Empire. He leads an expedition into Lorraine accompanied by Hugh Capet. Lothair crosses the Meuse River and takes Aachen, sacking the imperial palace.
  • November 30 – Otto II is unable to take Paris, he lifts the siege of the capital and withdraws. A Frankish army under Lothair III pursues and defeats the imperial rearguard while crossing the Aisne River. Otto escapes and is forced to take refuge at Aachen with Charles, after his supplies are destroyed.

978 CE37 entries

  • March 18 – King Edward the Martyr is murdered at Corfe Castle (Dorsetshire) upon the orders of his step-mother Ælfthryth (or Elfrida). He is succeeded by his half-brother Æthelred II (the Unready) who becomes king of England. During his reign Æthelred tries to keep his realm from being overrun by Danish Viking invaders.
  • June 3 – Chen Hongjin, Jiedushi of Pinghai Circuit, surrenders his territories and pledges allegiance to the Song Dynasty.
  • June 9 – King Qian Chu surrenders his territories and pledges allegiance to the Song Dynasty, saving his people from war and economic destruction. Qian Chu remains ruler and moves 3,000 members of his household to Bianjing (modern-day Kaifeng). Wuyue is absorbed into the Song Dynasty, effectively ending the kingdom.

979 CE22 entries

  • March 24 – Second Battle of Pankaleia: An Ibero-Byzantine expeditionary force, under General Bardas Phokas (the Younger), inflicts a crushing defeat on the rebels of General Bardas Skleros, at Sarvenis (modern Turkey). Skleros manages to escape, and finds shelter with his Muslim allies. The rebellion is subdued without difficulty.
  • June 8 – Louis V, nicknamed le Fainéant (the Do-Nothing), is crowned as the co-emperor of West Francia at Paris by his father, King Lothair. Upon Lothair's death on March 2, 986, Louis becomes the sole ruler.
  • The city of Brussels is founded by Charles, duke of Lower Lorraine. He constructs fortifications (a castrum on an island) on the Senne River (modern Belgium).