The 800s decade ran from January 1, 800, to December 31, 809.
The 810s decade ran from January 1, 810, to December 31, 819.
The 700s decade ran from January 1, 700, to December 31, 709.
Year 814 (DCCCXIV) was a common year starting on Sunday of the Julian calendar, the 814th year of the Common Era (CE) and Anno Domini (AD) designations, the 814th year of the 1st millennium, the 14th year of the 9th century, and the 5th year of the 810s decade.
Year 806 (DCCCVI) was a common year starting on Thursday of the Julian calendar, the 806th year of the Common Era (CE) and Anno Domini (AD) designations, the 806th year of the 1st millennium, the 6th year of the 9th century, and the 7th year of the 800s decade.
Year 803 (DCCCIII) was a common year starting on Sunday of the Julian calendar.
Year 812 (DCCCXII) was a leap year starting on Thursday of the Julian calendar, the 812th year of the Common Era (CE) and Anno Domini (AD) designations, the 812th year of the 1st millennium, the 12th year of the 9th century, and the 3rd year of the 810s decade.
Nikephoros I, also known as Nicephorus I, was the Byzantine emperor from 802 to 811. He began his career as genikos logothetēs under Empress Irene, but later overthrew her to seize the throne. Prior to becoming emperor, he was sometimes referred to as "the Logothete" and "Genikos" or "Genicus", in recognition of his previous role.
Michael I Rangabé was Byzantine emperor from 811 to 813.
Staurakios, also called Stauracius, was Byzantine emperor from 26 or 28 July to 2 October 811. He was born in the early 790s, probably between 791 and 793, to Nikephoros I and an unknown woman. Nikephoros seized the throne of the Byzantine Empire from Empress Irene in 802, and elevated Staurakios to co-emperor on 25 December 803. On 20 December 807, a bride show was held by Nikephoros to select a wife for Staurakios, which resulted in his marriage to Theophano of Athens, a kinswoman of Irene. Little else is known of him until he came to take the throne upon the death of Nikephoros.
Krum, often referred to as Krum the Fearsome was the Khan of Bulgaria from sometime between 796 and 803 until his death in 814. During his reign the Bulgarian territory doubled in size, spreading from the middle Danube to the Dnieper and from Odrin to the Tatra Mountains. His able and energetic rule brought law and order to Bulgaria and developed the rudiments of state organization.
The Battle of Pliska or Battle of Vărbitsa Pass was a series of battles between troops, gathered from all parts of the Byzantine Empire, led by the Emperor Nicephorus I, and the First Bulgarian Empire, governed by Khan Krum. The Byzantines plundered and burned the Bulgar capital Pliska which gave time for the Bulgarians to block passes in the Balkan Mountains that served as exits out of Bulgaria. The final battle took place on 26 July 811, in some of the passes in the eastern part of the Balkans, most probably the Vărbitsa Pass. There, the Bulgarians used the tactics of ambush and surprise night attacks to effectively trap and immobilize the Byzantine army, thus annihilating almost the whole army, including the Emperor. After the battle, Krum encased the skull of Nicephorus in silver, and used it as a cup for drinking. This is one of the most documented instances of the custom of the skull cup.
Pliska was the first capital of the First Bulgarian Empire during the Middle Ages and is now a small town in Shumen Province, on the Ludogorie plateau of the Danubian Plain, 20 km northeast of the provincial capital, Shumen.
Varbitsa Pass is a mountain pass in the Balkan Mountains in Bulgaria. It connects Shumen and Petolachka crossroads.
Varbitsa is a town in eastern Bulgaria, part of Shumen Province. It is the administrative centre of Varbitsa Municipality, which lies in the southwestern part of Shumen Province. As of December 2009, the town has a population of 3,585 inhabitants.
Aetios or Aetius was a Byzantine eunuch official and one of the most trusted advisers of Byzantine empress Irene of Athens. After Irene's rise to sole rule, Aetios developed an intense rivalry with her eunuch chief minister Staurakios. After Staurakios's death, Aetios became the leading man in the state. He plotted to usurp the throne for his brother, Leo, but lost power when Irene was deposed in 802.
The 806 invasion of Asia Minor was the largest of a long series of military operations launched by the Abbasid Caliphate against the Byzantine Empire. The expedition took place in southeastern and central Asia Minor, where the two states shared a long land border.
The Byzantine Empire under the Nikephorian dynasty began 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.
The siege of Debeltos was fought between the Eastern Roman Empire and Bulgaria from May to June 812. The siege took place at the city of Debeltos in Thrace and resulted in a Bulgarian victory.
The Martyrs of Adrianople, also known and venerated as the 377 Martyred Companions in Bulgaria, were three hundred and seventy seven Christians who were executed in martyrdom in 815. They are commemorated by the Eastern Orthodox Church on 22 January.
