Year 811 (DCCCXI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.

Millennium: 1st millennium
811 in various calendars
Gregorian calendar811
Ab urbe condita1564
Armenian calendar260
Assyrian calendar5561
Balinese saka calendar732–733
Bengali calendar218
Berber calendar1761
Buddhist calendar1355
Burmese calendar173
Byzantine calendar6319–6320
Chinese calendar庚寅(Metal Tiger)
3507 or 3447
    — to —
辛卯年 (Metal Rabbit)
3508 or 3448
Coptic calendar527–528
Discordian calendar1977
Ethiopian calendar803–804
Hebrew calendar4571–4572
Hindu calendars
 - Vikram Samvat867–868
 - Shaka Samvat732–733
 - Kali Yuga3911–3912
Holocene calendar10811
Iranian calendar189–190
Islamic calendar195–196
Japanese calendarKōnin 2
Javanese calendar707–708
Julian calendar811
Korean calendar3144
Minguo calendar1101 before ROC
Nanakshahi calendar−657
Seleucid era1122/1123 AG
Thai solar calendar1353–1354
Tibetan calendar阳金虎年
(male Iron-Tiger)
937 or 556 or −216
    — to —
(female Iron-Rabbit)
938 or 557 or −215
Krum feasts his victory over Nikephoros I


By place

Byzantine Empire

  • Byzantine–Bulgarian War: Emperor Nikephoros I organises a new campaign against the Bulgarian Empire, gathering an expeditionary force (around 80,000 men) from all parts of the empire. He is accompanied by high-ranking officials and aristocrats, including his son Stauracius and brother-in-law Michael I Rangabe[1] (both later emperors temporarily). Krum, ruler (khan) of Bulgaria, sends envoys to sue for peace. Nikephoros refuses to accept the terms and marches through the Balkan passes towards Pliska, the Bulgarian capital.
  • July 23 – Nikephoros I reaches Pliska, and destroys a Bulgarian army of 12,000 elite soldiers who guard the stronghold. Another hastily assembled relief force of 50,000 soldiers suffers a similar fate.[2] The Byzantines capture the defenseless capital. Nikephoros plunders the city and captures Krum's treasury.[3] He burns the countryside, slaughters sheep and pigs, as he pursues the retreating Bulgars south-west towards Serdica (modern-day Sofia).[4]
  • July 26Battle of Vărbitsa Pass: Nikephoros I is trapped (probably in the Vărbitsa Pass) and defeated by the Bulgars, who use the tactics of ambush and surprise night attacks to immobilize the Byzantine forces. Nikephoros himself is killed; Krum has the emperor's head carried back in triumph on a pole, where it is cleaned out, lined with silver and made into a jeweled skull cup, which he allows his Slavic princes (archons) to drink from with him.[5]
  • Stauracius is installed as emperor at Adrianople (the first time a Byzantine emperor is crowned outside Constantinople). Because of a sword wound near his neck (during the Battle of Pliska), Stauracius is paralyzed. The imperial court is split between the noble factions of his wife Theophano and his sister Prokopia.[6]
  • October 2 – Michael I is declared emperor of the Byzantine Empire; Stauracius is forced by senior officials to retire to a monastery.[7]


Abbasid Caliphate




  1. ^ Anonymus Vaticanus, p. 148.
  2. ^ Anonymus Vaticanus, pp. 148-149.
  3. ^ Anastasius Bibliothecarius. Chronographia tripertita, p. 329.
  4. ^ Anonymus Vaticanus, p. 150.
  5. ^ John V.A. Fine, Jr. (1991). The early Medieval Balkans: A Critical Survey from the Sixth to the Late Twelfth Century, p. 97. ISBN 978-0-472-08149-3.
  6. ^ Treadgold, p. 429; Bury, p. 17.
  7. ^ Treadgold, p. 429; Finlay, p. 128.
800 (number)

800 (eight hundred) is the natural number following 799 and preceding 801.

It is the sum of four consecutive primes (193 + 197 + 199 + 211). It is a Harshad number.

811 Naval Air Squadron

811 Naval Air Squadron was a unit of the British Royal Navy's Fleet Air Arm. It was first founded in 1933, and served during World War II, seeing action in the battle of the Atlantic and on Russian convoys, and was eventually disbanded in 1956.

Aeroflot Flight 811

Aeroflot Flight 811 was a scheduled Soviet domestic passenger flight from Komsomolsk-on-Amur to Blagoveshchensk that collided mid-air on 24 August 1981 with a Tupolev Tu-16K strategic bomber over Zavitinsky District in Amur Oblast, Russian SFSR, Soviet Union (now Russia). The collision between Aeroflot's Antonov An-24RV and Tupolev Tu-16K occurred at an altitude of 5,220 metres (17,130 ft), killing 37 people on both aircraft. The sole survivor, 20-year-old passenger Larisa Savitskaya from Antonov An-24RV, was rescued on the third day after the accident.

Byzantine Empire under the Nikephorian dynasty

Following the deposition of the Byzantine empress Irene of Athens, the throne of the Byzantine Empire passed to a relatively short-lived dynasty, the Nikephorian dynasty, named after its founder, Nikephoros I. The empire was in a weaker and more precarious position than it had been for a long time and its finances were problematic.During this era Byzantium was almost continually at war on two frontiers which drained its resources, and like many of his predecessors, Nikephoros (802-811) himself died while campaigning against the Bulgars to the north. Furthermore, Byzantium's influence continued to wane in the west with the crowning of Charlemagne (800-814) as Holy Roman emperor by Pope Leo III at Old St. Peter's Basilica in Rome in the year 800 and the establishment of a new empire in Western Europe laying claim to the universal Roman monarchy.

Dixie Highway (Broward–Palm Beach)

Dixie Highway in Palm Beach and Broward counties carries two segments of the State Road 811 (SR 811) designation by Florida Department of Transportation, as well as the local County Road 811 (CR 811) in southeast Florida. The entire road comprises a section of the Dixie Highway, a National Auto Trail which eventually became a former routing of U.S. Route 1 after the route was shifted east to Federal Highway. One segment of SR 811 is in Broward County and the other is in Palm Beach County, Florida. The segments of SR 811 are supplemented by three shorter segments of CR 811, one of which is unsigned.

English Suites (Bach)

The English Suites, BWV 806–811, are a set of six suites written by the German composer Johann Sebastian Bach for harpsichord (or clavichord) and generally thought to be the earliest of his 19 suites for keyboard, the others being the six French Suites, BWV 812–817, the six Partitas, BWV 825-830 and the Overture in the French style, BWV 831.

Houma (YTB-811)

Houma (YTB-811) was a United States Navy Natick-class large harbor tug named for Houma, Louisiana.

Lesbos Prefecture

Lesbos Prefecture (Greek: Νομός Λέσβου) was one of the prefectures of Greece. It comprised three main islands: Lesbos itself, Lemnos, and the smaller island of Agios Efstratios. Its capital was the town of Mytilene, on Lesbos. In 2011 the prefecture was abolished and the territory was divided between the regional units of Lesbos and Lemnos.

List of NJ Transit bus routes (800–880)

New Jersey Transit operates or contracts operation of the following routes within Middlesex, Monmouth, and Morris counties. All routes are exact fare lines.

List of former Maryland state highways (700–999)

The Maryland highway system has several hundred former state highways. These highways were constructed, maintained, or funded by the Maryland State Roads Commission or Maryland State Highway Administration and assigned a unique or temporally unique number. Some time after the highway was assigned, the highway was transferred to county or municipal maintenance and the number designation was removed from the particular stretch of road. In some cases, a highway was renumbered in whole or in part. This list contains all or most of the state-numbered highways between 700 and 999 that have existed since highways were first numbered in 1927 but are no longer part of the state highway system or are state highways of a different number. Most former state highways have not had their numbers reused. However, many state highway numbers were used for a former highway and are currently in use. Some numbers have been used three times. The former highways below whose numbers are used presently, those that were taken over in whole or in part by another highway, or have enough information to warrant a separate article contain links to those separate highway articles. Highway numbers that have two or more former uses are differentiated below by year ranges. This list does not include former Interstate or U.S. Highways, which are linked from their respective lists.

List of former primary state highways in Virginia (Lynchburg District)

The following is a list of former primary state highways completely or mostly within the Lynchburg District (VDOT District 3) of the U.S. state of Virginia.

Michael I Rangabe

Michael I Rhangabe (Greek: Μιχαῆλ Ῥαγγαβέ, Michaēl Rhangabe; c. 770 – 11 January 844) was Byzantine Emperor from 811 to 813.

Michael was the son of the patrician Theophylact Rhangabe, the admiral of the Aegean fleet. He married Prokopia, the daughter of the future Emperor Nikephoros I, and received the high court dignity of kouropalatēs after his father-in-law's accession in 802.

Nikephoros I

Nikephoros I, or Nicephorus I (Greek: Νικηφόρος Α΄, Nikēphoros I; died July 26, 811), was Byzantine Emperor from 802 to 811, when he was killed in the Battle of Pliska. Prior to his accession, he had served as genikos logothetēs, whence he is sometimes surnamed "the Logothete" (ὁ Λογοθέτης) and "Genikos" or "Genicus" (ὁ Γενικός).

Ontario Highway 811

Tertiary Highway 811, commonly referred to as Highway 811, is the longest of Ontario's tertiary highways, and the highest posted route number in the province. The route encounters no named roads along its route, aside from its eastern terminus at Secondary Highway 527. It extends 59 kilometres (37 mi) westward into the wilderness, ending at a bridge over the Weaver River. The route was designated in 1976 with the intention of extending it further west, but this extension has yet to be constructed.

Rolls-Royce Turbomeca Adour

The Rolls-Royce Turbomeca Adour is a two-shaft low bypass turbofan aircraft engine developed by Rolls-Royce Turbomeca Limited, a joint venture between Rolls-Royce (UK) and Turbomeca (France). The engine is named after the Adour, a river in south western France.

Rural Municipality of Spalding No. 368

Spalding No. 368 (2006 Population 425) is a rural municipality, established in 1912, in Saskatchewan, Canada, encompassing 811.47 square kilometers in area. The rural municipality was originally called the Rural Municipality of Iron Spring. The rural municipality has within its boundaries the incorporated communities of Spalding, that is also home to the municipality offices. The rural municipality in conjunction with the provincial government is in charge of maintenance of highways in its area. As well, the municipality provides policing, fire protection and municipal governance for the rural district, with a reeve as its administrator. The economy of the rural municipality is predominantly agricultural.

Shamshi-Adad V

Shamshi-Adad V was the King of Assyria from 824 to 811 BC. He was named after the god Adad, who is also known as Hadad.


Staurakios or Stauracius (Greek: Σταυράκιος; After 778 – 11 January 812 AD) was Byzantine Emperor from 26 July to 2 October 811. He was born some time after 778 AD, to Nikephoros I and an unknown woman. Nikephoros seized the throne of the Byzantine Empire from Irene of Athens in 802, and elevated Staurakios to co-emperor in December 803. After Nikephoros fell in the Battle of Pliska on 26 July 811, Staurakios was declared emperor, despite his severe injuries. However, due to these injuries his reign was short, he was usurped by his brother-in-law, Michael I Rangabe, on 2 October 811, after which he was sent to live in a monastery, where he stayed until he died of gangrene on 11 January 812.

Theophylact (son of Michael I)

Theophylact or Theophylaktos (Greek: Θεοφύλακτος; c. 793 – 15 January 849) was the eldest son of the Byzantine emperor Michael I Rhangabe (r. 811–813) and grandson, on his mother's side, of Nikephoros I (r. 802–811). He was junior co-emperor alongside his father for the duration of the latter's reign, and was tonsured, castrated, and exiled to Plate Island after his overthrow, under the monastic name Eustratius.

United Airlines Flight 811

United Airlines Flight 811 was a regularly scheduled airline flight from Los Angeles to Sydney, with intermediate stops at Honolulu, and Auckland. On February 24, 1989, the Boeing 747-122 serving the flight experienced a cargo door failure in flight shortly after leaving Honolulu. The resulting explosive decompression blew out several rows of seats, resulting in the deaths of nine passengers. The aircraft returned to Honolulu, where it landed safely.

This page is based on a Wikipedia article written by authors (here).
Text is available under the CC BY-SA 3.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.