Year 1054 (MLIV) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar.

Millennium: 2nd millennium
1054 in various calendars
Gregorian calendar1054
Ab urbe condita1807
Armenian calendar503
Assyrian calendar5804
Balinese saka calendar975–976
Bengali calendar461
Berber calendar2004
English Regnal yearN/A
Buddhist calendar1598
Burmese calendar416
Byzantine calendar6562–6563
Chinese calendar癸巳(Water Snake)
3750 or 3690
    — to —
甲午年 (Wood Horse)
3751 or 3691
Coptic calendar770–771
Discordian calendar2220
Ethiopian calendar1046–1047
Hebrew calendar4814–4815
Hindu calendars
 - Vikram Samvat1110–1111
 - Shaka Samvat975–976
 - Kali Yuga4154–4155
Holocene calendar11054
Igbo calendar54–55
Iranian calendar432–433
Islamic calendar445–446
Japanese calendarTengi 2
Javanese calendar957–958
Julian calendar1054
Korean calendar3387
Minguo calendar858 before ROC
Nanakshahi calendar−414
Seleucid era1365/1366 AG
Thai solar calendar1596–1597
Tibetan calendar阴水蛇年
(female Water-Snake)
1180 or 799 or 27
    — to —
(male Wood-Horse)
1181 or 800 or 28
William+Henry 2
King Henry I of France (right) receives a courier from William the Bastard.


By place

Byzantine Empire

  • Sultan Tughril leads a large Seljuk army out of Azerbaijan into Armenia, possibly to consolidate his frontier while providing an incentive to his Turkoman allies in the form of plunder. Tughril divides his army into four columns, ordering three to veer off to the north to raid into central and northern Armenia while he takes the fourth column towards Lake Van. The Seljuk Turks capture and sack the fortress city of Artchesh after an 8-day siege.[1]




  • The Almoravids retake the trading center of Aoudaghost from the Ghana Empire. Repeated Almoravid incursions, aim at seizing control of the trans-Saharan gold trade, disrupt Ghana's dominance of the trade routes.[2]


By topic






  1. ^ Brian Todd Carey (2012). Road to Manzikert: Byzantine and Islamic Warfare (527–1071), p. 125. ISBN 978-1-84884-215-1.
  2. ^ Levtzion, Nehemia; Hopkins, John F.P., eds. (2000), Corpus of Early Arabic Sources for West Africa, New York: Marcus Weiner Press. ISBN 1-55876-241-8. First published in 1981.
  3. ^ Journal of Astronomy, part 9, chapter 56 of Sung History (Sung Shih) first printing, 1340. facsimile on the frontispiece of Misner, Thorne, Wheeler Gravitation, 1973.
  4. ^ "Crab Nebula". NASA.
  5. ^ Brett Edward Whalen (2009). Dominion of God: Christendom and Apocalypse in the Middle Ages, p. 24 (Harvard University Press).
1050s in England

Events from the 1050s in England.

36 Aurigae

36 Aurigae or V444 Aurigae is a star in the constellation Auriga. Its apparent magnitude is 5.71.


Atiśa Dīpaṃkara Śrījñāna (Bengali: অতীশ দীপংকর শ্রীজ্ঞান, translit. otish dipônkor sriggan; Standard Tibetan: ཇོ་བོ་རྗེ་དཔལ་ལྡན་ཨ་ཏི་ཤ།; Chinese: 燃燈吉祥智; pinyin: Rándēng Jíxiángzhì) (982 - 1054 CE) was a Bengali Buddhist religious leader and master from the Indian subcontinent. He was one of the major figures in the spread of 11th-century Mahayana and Vajrayana Buddhism in Asia and inspired Buddhist thought from Tibet to Sumatra. In 1013 CE, he traveled to the Srivijaya kingdom and stayed there for 12 years and came back to India. He is recognised as one of the greatest figures of classical Buddhism, and Atisa's chief disciple Dromtön was the founder of the Kadam School, one of the New Translation schools of Tibetan Buddhism, later supplanted by the Geluk tradition in the fourteenth century, adopting its teaching and absorbing its monasteries.In 2004, Atiśa was ranked number 18 in BBC's poll of the Greatest Bengali of all time.

Crab Nebula

The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant in the constellation of Taurus. The now-current name is due to William Parsons, who observed the object in 1840 using a 36-inch telescope and produced a drawing that looked somewhat like a crab. Corresponding to a bright supernova recorded by Chinese astronomers in 1054, the nebula was observed later by English astronomer John Bevis in 1731. The nebula was the first astronomical object identified with a historical supernova explosion.

At an apparent magnitude of 8.4, comparable to that of Saturn's moon Titan, it is not visible to the naked eye but can be made out using binoculars under favourable conditions. The nebula lies in the Perseus Arm of the Milky Way galaxy, at a distance of about 2.0 kiloparsecs (6,500 ly) from Earth. It has a diameter of 3.4 parsecs (11 ly), corresponding to an apparent diameter of some 7 arcminutes, and is expanding at a rate of about 1,500 kilometres per second (930 mi/s), or 0.5% of the speed of light.

At the center of the nebula lies the Crab Pulsar, a neutron star 28–30 kilometres (17–19 mi) across with a spin rate of 30.2 times per second, which emits pulses of radiation from gamma rays to radio waves. At X-ray and gamma ray energies above 30 keV, the Crab Nebula is generally the brightest persistent source in the sky, with measured flux extending to above 10 TeV. The nebula's radiation allows for the detailed studying of celestial bodies that occult it. In the 1950s and 1960s, the Sun's corona was mapped from observations of the Crab Nebula's radio waves passing through it, and in 2003, the thickness of the atmosphere of Saturn's moon Titan was measured as it blocked out X-rays from the nebula.

The inner part of the nebula is a much smaller pulsar wind nebula that appears as a shell surrounding the pulsar. Some sources consider the Crab Nebula to be an example of both a pulsar wind nebula as well as a supernova remnant, while others separate the two phenomena based on the different sources of energy production and behaviour. For the Crab Nebula, the divisions are superficial but remain meaningful to researchers and their lines of study.

East–West Schism

The East–West Schism, also called the Great Schism and the Schism of 1054, was the break of communion between what are now the Catholic Church and Eastern Orthodox churches, which had lasted until the 11th century. The Schism was the culmination of theological and political differences between the Christian East and West which had developed over the preceding centuries.

A succession of ecclesiastical differences and theological disputes between the Greek East and Latin West pre-dated the formal rupture that occurred in 1054. Prominent among these were the issues of the procession of the Holy Spirit, whether leavened or unleavened bread should be used in the Eucharist, the Bishop of Rome's claim to universal jurisdiction, and the place of the See of Constantinople in relation to the Pentarchy.In 1053, the first step was taken in the process which led to formal schism: the Greek churches in southern Italy were forced either to close or to conform to Latin practices. In retaliation, the Ecumenical Patriarch of Constantinople Michael I Cerularius ordered the closure of all Latin churches in Constantinople. In 1054, the papal legate sent by Leo IX travelled to Constantinople for purposes that included refusing to Cerularius the title of "Ecumenical Patriarch" and insisting that he recognize the Pope's claim to be the head of all the churches. The main purpose of the papal legation was to seek help from the Byzantine Emperor in view of the Norman conquest of southern Italy and to deal with recent attacks by Leo of Ohrid against the use of unleavened bread and other Western customs, attacks that had the support of Cerularius. Historian Axel Bayer says the legation was sent in response to two letters, one from the Emperor seeking assistance in arranging a common military campaign by the eastern and western empires against the Normans, and the other from Cerularius. On the refusal of Cerularius to accept the demand, the leader of the legation, Cardinal Humbert of Silva Candida, O.S.B., excommunicated him, and in return Cerularius excommunicated Humbert and the other legates. This was only the first act in a centuries-long process that eventually became a complete schism.The validity of the Western legates' act is doubtful, since Pope Leo had died and Cerularius' excommunication applied only to the legates personally. Still, the Church split along doctrinal, theological, linguistic, political, and geographical lines, and the fundamental breach has never been healed, with each side sometimes accusing the other of having fallen into heresy and of having initiated the division. The Latin led Crusades, the Massacre of the Latins in 1182, the West's retaliation in the Sacking of Thessalonica in 1185, the capture and pillaging of Constantinople by the Fourth Crusade in 1204, and the imposition of Latin patriarchs made reconciliation more difficult. Establishing Latin hierarchies in the Crusader states meant that there were two rival claimants to each of the patriarchal sees of Antioch, Constantinople, and Jerusalem, making the existence of schism clear. Several attempts at reconciliation did not bear fruit. In 1965, Pope Paul VI and the Ecumenical Patriarch of Constantinople Athenagoras I nullified the anathemas of 1054, although this nullification of measures taken against a few individuals was essentially a goodwill gesture and did not constitute any sort of reunion. Contacts between the two sides continue: every year a delegation from each joins in the other's celebration of its patronal feast, Saints Peter and Paul (29 June) for Rome and Saint Andrew (30 November) for Constantinople, and there have been a number of visits by the head of each to the other. The efforts of the Ecumenical Patriarchs towards reconciliation with the Catholic Church have often been the target of sharp criticism from some fellow Orthodox.

García Sánchez III of Pamplona

García Sánchez III (Basque: Gartzea III.a Sanoitz; c. 1012 – 15 September 1054), nicknamed García from Nájera (Basque: Gartzea Naiarakoa, Spanish: García el de Nájera) was King of Pamplona from 1034 until his death. He was also Count of Álava and had under his personal control part of the County of Castile. As the eldest son of Sancho III he inherited the dynastic rights over the crown of Pamplona, becoming feudal overlord over two of his brothers: Ramiro, who was given lands that would serve as the basis for the Kingdom of Aragón; and Gonzalo, who received the counties of Sobrarbe and Ribagorza. Likewise, he had some claim to suzerainty over his brother Ferdinand, who under their father had served as Count of Castile, nominally subject to the Kingdom of León but brought under the personal control of Sancho III.

German submarine U-1054

German submarine U-1054 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Guest star (astronomy)

In Chinese astronomy, a guest star (Chinese: 客星; pinyin: kèxīng; literally: 'guest star') is a star which has suddenly appeared in a place where no star had previously been observed and becomes invisible again after some time. The term is a literal translation from ancient Chinese astronomical records.

Modern astronomy recognizes that guest stars are manifestations of cataclysmic variable stars: novae and supernovae. The term "guest star" is used in the context of ancient records, since the exact classification of an astronomical event in question is based on interpretations of old records, including inference, rather than on direct observations.

In ancient Chinese astronomy, guest stars were one of the three types of highly transient objects (bright heavenly bodies); the other two (彗星, huixing, “broom star”, a comet with a tail; and xing bo, “fuzzy star”, a comet without a tail) being comets in modern understanding. The earliest Chinese record of guest stars is contained in Han Shu (漢書), the history of Han Dynasty (206 BCE – 220 CE), and all subsequent dynastic histories had such records. These contain one of the clearest early descriptions consistent with a supernova, posited to be left over by object SN 185, thus identified as a supernova remnant of the exact year 185 CE.

Chronicles of the contemporary Ancient Europeans are more vague when consulted for supernovae candidates. Whether due to weather or other reasons for lack of observation, astronomers have questioned why the notable remnant attributed to Chinese observations of a guest star in 1054 AD (see SN 1054), is missing from the European records.

Hermann of Reichenau

Hermann of Reichenau (July 18, 1013 – September 24, 1054), also called Hermannus Contractus or Hermannus Augiensis or Herman the Cripple, was an 11th-century scholar, composer, music theorist, mathematician, and astronomer. He composed the Marian prayer Alma Redemptoris Mater. He was beatified (cultus confirmed) in 1863.

Michael I Cerularius

Michael I Cerularius or Keroularios (Greek: Μιχαήλ Α΄ Κηρουλάριος; c. 1000 – 21 January 1059 AD) was the Ecumenical Patriarch of Constantinople from 1043 to 1059 AD. He is most notable for his role in the events that led to the Great Schism in 1054.

Pope Leo IX

Pope Leo IX (21 June 1002 – 19 April 1054), born Bruno of Egisheim-Dagsburg, was Pope from 12 February 1049 to his death in 1054. He was a German aristocrat and a powerful ruler of central Italy while holding the papacy. He is regarded as a saint by the Catholic Church, his feast day celebrated on 19 April.Leo IX is widely considered the most historically significant German Pope of the Middle Ages; he was instrumental in the precipitation of the Great Schism of 1054, considered the turning point in which the Catholic and Orthodox Church formally separated.

SN 1054

SN 1054 is a supernova that was first observed on 4 July 1054, and remained visible for around two years.

The event was recorded in contemporary Chinese astronomy, and references to it are also found in a later (13th-century) Japanese document, and in a document from the Arab world. Furthermore, there are a number of proposed, but doubtful, references from European sources recorded in the 15th century, and perhaps a pictograph associated with the Ancestral Puebloan culture found near the Peñasco Blanco site in New Mexico.

The remnant of SN 1054, which consists of debris ejected during the explosion, is known as the Crab Nebula. It is located in the sky near the star Zeta Tauri (ζ Tauri). The core of the exploding star formed a pulsar, called the Crab Pulsar (or PSR B0531+21). The nebula and the pulsar that it contains are some of the most studied astronomical objects outside the Solar System. It is one of the few Galactic supernovae where the date of the explosion is well known. The two objects are the most luminous in their respective categories. For these reasons, and because of the important role it has repeatedly played in the modern era, SN 1054 is the best known supernova in the history of astronomy.

The Crab Nebula is easily observed by amateur astronomers thanks to its brightness, and was also catalogued early on by professional astronomers, long before its true nature was understood and identified. When the French astronomer Charles Messier watched for the return of Halley's Comet in 1758, he confused the nebula for the comet, as he was unaware of the former's existence. Motivated by this error, he created his catalogue of non-cometary nebulous objects, the Messier Catalogue, to avoid such mistakes in the future. The nebula is catalogued as the first Messier object, or M1.

Shamshi-Adad IV

Šamši-Adad IV, inscribed mdšam-ši-dIM, was the king of Assyria, 1054/3–1050 BC, the 91st to be listed on the Assyrian Kinglist. He was a son of Tukultī-apil-Ešarra I (1114–1076 BC), the third to have taken the throne, after his brothers Ašarēd-apil-Ekur and Ashur-bel-kala, and he usurped the kingship from the latter’s son, the short-reigning Erība-Adad II (1055–1054 BC). It is quite probable that he was fairly elderly when he seized the throne.

Siege of Medina (1053–54)

The Siege of Medina was an unsuccessful Byzantine attack on the Muslim city of Medina (modern Mdina), Malta in 1053 or 1054. The Muslim inhabitants of the city and their slaves managed to repel a superior Byzantine force, which retreated with heavy losses. After the siege, the slaves who helped the Muslims against the invaders were freed, and the Byzantines never attempted to retake the island.


Tchirozerine is a town and urban commune in Niger. As of 2011, the commune had a total population of 67,876 people.

Tong Guan

Tong Guan (1054–1126), courtesy name Daofu (道夫), was a Chinese court eunuch, military general, political adviser, and state councillor to Emperor Huizong of the Song dynasty. In the classical novel Water Margin, Tong Guan is fictionalised as a corrupt government official and an enemy of the 108 Stars of Destiny.

USS Gray

USS Gray (FF-1054) was a United States Navy Knox-class frigate. She was named for Marine Corps Sergeant Ross F. Gray, who was a posthumous recipient of the Medal of Honor.

Yaroslav the Wise

Yaroslav I, Grand Prince of Rus', known as Yaroslav the Wise or Iaroslav the Wise (Old East Slavic: Ꙗрославъ Володимѣровичъ Мѫдрꙑи; Russian: Ярослав Мудрый, [jɪrɐˈslaf ˈmudrɨj]; Old Norse: Jarizleifr Valdamarsson;; Latin: Iaroslaus Sapiens; c. 978 – 20 February 1054) was thrice grand prince of Veliky Novgorod and Kiev, uniting the two principalities for a time under his rule. Yaroslav's Christian name was George (Yuri) after Saint George (Old East Slavic: Гюрьгi, Gjurĭgì).

A son of Vladimir the Great, the first Christian Prince of Novgorod, Yaroslav acted as vice-regent of Novgorod at the time of his father's death in 1015. Subsequently, his eldest surviving brother, Sviatopolk I of Kiev, killed three of his other brothers and seized power in Kiev. Yaroslav, with the active support of the Novgorodians and the help of Varangian mercenaries,

defeated Svyatopolk and became the Grand Prince of Kiev in 1019. Under Yaroslav the codification of legal customs and princely enactments had begun, and this work served as the basis for a law code called the Russkaya Pravda ("Rus Truth [Law]"). During his lengthy reign, Kievan Rus' reached the zenith of its cultural flowering and military power.

Đại Việt

Đại Việt (大越, IPA: [ɗâjˀ vìət], literally Great Viet) is the name of Vietnam for the periods from 1054 to 1400 and 1428 to 1804. Beginning with the rule of Lý Thánh Tông (r. 1054–1072), the third emperor of the Lý Dynasty, until the rule of Gia Long (r. 1802–1820), the first emperor of the Nguyễn Dynasty, it was the second-longest used name for the country after "Văn Lang".

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