# 647 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/647 > Markdown URL: https://mediated.wiki/source/647.md > Source: https://en.wikipedia.org/wiki/647 > Source revision: 1340804471 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Calendar year Calendar year Years Millennium 1st millennium Centuries 6th century 7th century 8th century Decades 620s 630s 640s 650s 660s Years 644 645 646 647 648 649 650 v t e 647 by topic Leaders Political entities State leaders Religious leaders Categories Births Deaths v t e 647 in various calendars Gregorian calendar 647 DCXLVII Ab urbe condita 1400 Armenian calendar 96 ԹՎ ՂԶ Assyrian calendar 5397 Balinese saka calendar 568–569 Bengali calendar 53–54 Berber calendar 1597 Buddhist calendar 1191 Burmese calendar 9 Byzantine calendar 6155–6156 Chinese calendar 丙午年 (Fire Horse) 3344 or 3137 — to — 丁未年 (Fire Goat) 3345 or 3138 Coptic calendar 363–364 Discordian calendar 1813 Ethiopian calendar 639–640 Hebrew calendar 4407–4408 Hindu calendars - Vikram Samvat 703–704 - Shaka Samvat 568–569 - Kali Yuga 3747–3748 Holocene calendar 10647 Iranian calendar 25–26 Islamic calendar 26–27 Japanese calendar Taika 3 (大化３年) Javanese calendar 538–539 Julian calendar 647 DCXLVII Korean calendar 2980 Minguo calendar 1265 before ROC 民前1265年 Nanakshahi calendar −821 Seleucid era 958/959 AG Thai solar calendar 1189–1190 Tibetan calendar མེ་ཕོ་རྟ་ལོ་ (male Fire-Horse) 773 or 392 or −380 — to — མེ་མོ་ལུག་ལོ་ (female Fire-Sheep) 774 or 393 or −379 [Cheomseongdae](/source/Cheomseongdae) in [Gyeongju](/source/Gyeongju) ([South Korea](/source/South_Korea)) Year **647** (**[DCXLVII](/source/Roman_numerals)**) was a [common year starting on Monday](/source/Common_year_starting_on_Monday) of the [Julian calendar](/source/Julian_calendar). The denomination 647 for this year has been used since the early medieval period, when the [Anno Domini](/source/Anno_Domini) [calendar era](/source/Calendar_era) became the prevalent method in Europe for naming years. ## Events ### By place #### Byzantine Empire - [Arab–Byzantine War](/source/Arab%E2%80%93Byzantine_wars#Conquest_of_the_Exarchate_of_Africa): An [Arab army](/source/Rashidun_army) (20,000 men) under [Abdullah ibn Sa'ad](/source/Abdullah_ibn_Saad) invades the Byzantine [Exarchate of Africa](/source/Exarchate_of_Africa). It conquers [Tripolitania](/source/Tripolitania) and the city of [Sufetula](/source/Sbeitla), 150 miles (240 km) south of [Carthage](/source/Carthage). - Self-proclaimed emperor [Gregory the Patrician](/source/Gregory_the_Patrician) is killed during the Arab invasion at Sufetula. [Africa](/source/History_of_Africa) returns to imperial allegiance after his death, but the foundation of [Byzantine](/source/Byzantine_Empire) rule is fatally undermined. #### Asia - Emperor [Taizong](/source/Emperor_Taizong_of_Tang) of the [Tang dynasty](/source/Tang_dynasty) sends a Chinese mission to study Indian techniques of [sugar](/source/Sugar) manufacturing, at [Bihar](/source/Bihar) in the [Ganges Valley](/source/Ganges).[1] - Taizong establishes a Chinese [military government](/source/Stratocracy) to [pacify the former territory of Xueyantuo](/source/Protectorate_General_to_Pacify_the_North), which extends to the [Altai Mountains](/source/Altai_Mountains) in the west. - Emperor [Harsha](/source/Harsha), ruler of northern [India](/source/India), dies after a 41-year reign. His kingdom disintegrates into smaller states. - [Jindeok](/source/Jindeok_of_Silla) becomes queen of the Korean kingdom of [Silla](/source/Silla) after the death of [Queen Seondeok](/source/Queen_Seondeok).[2] ### By topic #### Astronomy and science - A stone tower [astronomical](/source/Astronomy) [observatory](/source/Observatory) (named [Cheomseongdae](/source/Cheomseongdae)) at [Gyeongju](/source/Gyeongju) is constructed in [Silla](/source/Silla) ([South Korea](/source/South_Korea)) around this time. #### Religion - [Hilda of Whitby](/source/Hilda_of_Whitby), age 33, is persuaded by [Aidan](/source/Aidan_of_Lindisfarne), bishop of [Lindisfarne](/source/Lindisfarne), to enter the [monastic](/source/Monasticism) life at [Hartlepool Abbey](/source/Hartlepool_Abbey) ([Northumbria](/source/Northumbria)). ## Births - [Al-Abbas ibn Ali](/source/Al-Abbas_ibn_Ali), Muslim [martyr](/source/Martyr) (d. [680](/source/680)) - [Itzamnaaj B'alam II](/source/Itzamnaaj_B'alam_II), ruler of [Yaxchilan](/source/Yaxchilan) (d. [742](/source/742)) ## Deaths - [Æthelburh of Kent](/source/%C3%86thelburh_of_Kent), queen of [Northumbria](/source/Northumbria) - [Felix of Burgundy](/source/Felix_of_Burgundy), bishop of [Dunwich](/source/Dunwich) (or [648](/source/648)) - [Gao Shilian](/source/Gao_Shilian), chancellor of the [Tang dynasty](/source/Tang_dynasty) (b. [576](/source/576)) - [Gregory the Patrician](/source/Gregory_the_Patrician), [Exarch of Africa](/source/Exarchate_of_Africa) - [Harsha](/source/Harsha), emperor of [Harsha](/source/Harsha) ([India](/source/India)) - [Li Baiyao](/source/Li_Baiyao), Chinese official and [historian](/source/Historian) (b. [564](/source/564)) - [Seondeok](/source/Queen_Seondeok_of_Silla), queen of [Silla](/source/Silla) ([Korea](/source/Three_Kingdoms_of_Korea))[2] - [Xiao Yu](/source/Xiao_Yu), prince of the [Liang dynasty](/source/Liang_dynasty) (b. [574](/source/574)) - [Yang Shidao](/source/Yang_Shidao), [chancellor of the Tang dynasty](/source/Chancellor_of_the_Tang_dynasty) ## References 1. **[^](#cite_ref-Kieschnick11_1-0)** Kieschnick, John (2003). "The Impact of Buddhism on Chinese Material Culture". [Princeton University Press](/source/Princeton_University_Press), p. 258. [ISBN](/source/ISBN_(identifier)) [0-691-09676-7](https://en.wikipedia.org/wiki/Special:BookSources/0-691-09676-7) 1. ^ [***a***](#cite_ref-met_2-0) [***b***](#cite_ref-met_2-1) ["List of Rulers of Korea"](https://www.metmuseum.org/toah/hd/koru/hd_koru.htm). *www.metmuseum.org*. Retrieved April 21, 2019. --- Adapted from the Wikipedia article [647](https://en.wikipedia.org/wiki/647) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/647?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.