Pope Stephen V was the bishop of Rome and ruler of the Papal States from September 885 to his death. In his dealings with Photius I of Constantinople, as in his relations with the young Slavic Orthodox church, he pursued the policy of Pope Nicholas I.
Cyril and Methodius were brothers, Byzantine Christian theologians and missionaries. For their work evangelizing the Slavs, they are known as the "Apostles to the Slavs".
The 860s decade ran from January 1, 860, to December 31, 869.
Pope Nicholas I, called Nicholas the Great, was the bishop of Rome and ruler of the Papal States from 24 April 858 until his death. He is remembered as a consolidator of papal authority, exerting decisive influence on the historical development of the papacy and its position among the Christian nations of Western Europe. Nicholas I asserted that the pope should have suzerainty over all Christians, even royalty, in matters of faith and morals.
Boris I, venerated as Saint Boris I (Mihail) the Baptizer, was the ruler (knyaz) of the First Bulgarian Empire from 852 to 889. Despite a number of military setbacks, the reign of Boris I was marked with significant events that shaped Bulgarian and European history. With the Christianization of Bulgaria in 864, paganism was abolished. A skillful diplomat, Boris I successfully exploited the conflict between the Patriarchate of Constantinople and the Papacy to secure an autocephalous Bulgarian Church, thus dealing with the nobility's concerns about Byzantine interference in Bulgaria's internal affairs.
The Orthodox Church of the Czech Lands and Slovakia is a self-governing body of the Eastern Orthodox Church that territorially covers the countries of the Czech Republic and Slovakia. The current primate of the Czech and Slovak Orthodox Church is Rastislav of Prešov, Metropolitan of the Czech Lands and Slovakia since 2014.
Naum, also known as Naum of Ohrid or Naum of Preslav, was a medieval Bulgarian writer and missionary among the Slavs, considered one of the Seven Apostles of the First Bulgarian Empire. He was among the disciples of Cyril and Methodius and is associated with the creation of the Glagolitic and Cyrillic script. Naum was among the founders of the Pliska Literary School. Afterwards Naum worked at the Ohrid Literary School. He was among the first saints declared by the Bulgarian Orthodox Church after its foundation in the 9th century. The mission of Naum played significant role by transformation of the local Early Slavs into Bulgarians.
The Bulgarian Orthodox Church, legally the Patriarchate of Bulgaria, is an autocephalous Eastern Orthodox jurisdiction based in Bulgaria. It is the first medieval recognised patriarchate outside the Pentarchy and the oldest Slavic Orthodox church, with some 6 million members in Bulgaria and between 1.5 and 2 million members in a number of other European countries, Asia, the Americas, Australia, and New Zealand. It was recognized as autocephalous in 1945 by the Ecumenical Patriarchate of Constantinople.
The First Bulgarian Empire was a medieval state that existed in Southeastern Europe between the 7th and 11th centuries AD. It was founded in 680–681 after part of the Bulgars, led by Asparuh, moved south to the northeastern Balkans. There they secured Byzantine recognition of their right to settle south of the Danube by defeating – possibly with the help of local South Slavic tribes – the Byzantine army led by Constantine IV. During the 9th and 10th century, Bulgaria at the height of its power spread from the Danube Bend to the Black Sea and from the Dnieper River to the Adriatic Sea and became an important power in the region competing with the Byzantine Empire.
Mutimir was prince of the first Serbian Principality from ca. 850 until 891. He defeated the Bulgar army, and allied himself with the Byzantine emperor, and the Church in Serbia with the Ecumenical Patriarchate of Constantinople.
The history of the Eastern Orthodox Church is the formation, events, and transformation of the Eastern Orthodox Church through time. According to the Eastern Orthodox tradition, the history of the Eastern Orthodox Church is traced back to Jesus Christ and the Apostles. The Apostles appointed successors, known as bishops, and they in turn appointed other bishops in a process known as Apostolic succession. Over time, five Patriarchates were established to organize the Christian world, and four of these ancient patriarchates remain Orthodox today. Orthodox Christianity reached its present form in late antiquity, when the ecumenical councils were held, doctrinal disputes were resolved, the Fathers of the Church lived and wrote, and Orthodox worship practices settled into their permanent form.
In the 9th century, Christianity was spreading throughout Europe, being promoted especially in the Carolingian Empire, its eastern neighbours, Scandinavia, and northern Spain. In 800, Charlemagne was crowned as Holy Roman Emperor, which continued the Photian schism.
The Great Basilica of Pliska is an architectural complex in Pliska, the first capital of the First Bulgarian Empire, which includes the cathedral, an archbishop's palace and a monastery. The basilica was constructed on the orders of the knyaz of Bulgaria, Boris I, after his baptism in 864 and the resultant Christianization of Bulgaria. Completed around 875, the basilica was 102.5 metres (336 ft) long and 30 metres (98 ft) wide.
Christianity in the Middle Ages covers the history of Christianity from the fall of the Western Roman Empire. The end of the period is variously defined - depending on the context, events such as the conquest of Constantinople by the Ottoman Empire in 1453, Christopher Columbus's first voyage to the Americas in 1492, or the Protestant Reformation in 1517 are sometimes used.
Peter was a Bulgarian noble and relative of knyaz (khan) Boris I who was in charge of diplomatic missions during the Christianization of Bulgaria. His position in the Bulgarian administrative hierarchy is unknown but it has been suggested that he had the title kavhan, i. e. the second person in the state after the monarch.
Clement or Kliment of Ohrid was one of the first medieval Bulgarian saints, scholar, writer, and apostle to the Slavs. He was one of the most prominent disciples of Cyril and Methodius and is often associated with the creation of the Glagolitic and Cyrillic scripts, especially their popularisation among Christianised Slavs. He was the founder of the Ohrid Literary School and is regarded as a patron of education and language by some Slavic people. He is considered to be the first bishop of the Bulgarian Orthodox Church, one of the Seven Apostles of Bulgarian Orthodox Church since the 10th century, and one of the premier saints of modern Bulgaria. The mission of Clement was the crucial factor which transformed the Slavs in then Kutmichevitsa into Bulgarians. Clement is also the patron saint of North Macedonia, the city of Ohrid and the Macedonian Orthodox Church.
This is a list of people, places, and events related to the medieval Bulgarian Empires — the First Bulgarian Empire (681–1018), and the Second Bulgarian Empire (1185–1396).
The Christianization of Moravia refers to the spread of the Christian religion in the lands of medieval Moravia.
The Archbishopric of Moravia was an ecclesiastical province, established by the Holy See to promote Christian missions among the Slavic peoples. Its first archbishop, the Byzantine Methodius, persuaded Pope John VIII to sanction the use of Old Church Slavonic in liturgy. Methodius had been consecrated archbishop of Pannonia by Pope Adrian II at the request of Koceľ, the Slavic ruler of Pannonia in East Francia in 870.
The Slavs were Christianized in waves from the 7th to 12th century, though the process of replacing old Slavic religious practices began as early as the 6th century. Generally speaking, the monarchs of the South Slavs adopted Christianity in the 9th century, the East Slavs in the 10th, and the West Slavs between the 9th and 12th century. Saints Cyril and Methodius are attributed as "Apostles to the Slavs", having introduced the Byzantine-Slavic rite and Glagolitic alphabet, the oldest known Slavic alphabet and basis for the Early Cyrillic alphabet.
