Bogomilism was a Gnostic

Gnosticism

Gnosticism is a scholarly term for a set of religious beliefs and spiritual practices common to early Christianity, Hellenistic Judaism, Greco-Roman mystery religions, Zoroastrianism , and Neoplatonism.A common characteristic of some of these groups was the teaching that the realisation of Gnosis...

 religiopolitical sect

Sect

A sect is a group with distinctive religious, political or philosophical beliefs. Although in past it was mostly used to refer to religious groups, it has since expanded and in modern culture can refer to any organization that breaks away from a larger one to follow a different set of rules and...

 founded in the First Bulgarian Empire

First Bulgarian Empire

The First Bulgarian Empire was a medieval Bulgarian state founded in the north-eastern Balkans in c. 680 by the Bulgars, uniting with seven South Slavic tribes...

 by the priest Bogomil

Bogomil (priest)

Bogomil was a 10th-century Bulgarian priest and heresiarch, who was connected with the origins of Bogomilism. According to Cosmas the Priest the priest Bogomil first began to preach his heresy in Bulgaria in the reign of the Peter I of Bulgaria , which indicates that Cosmas must have been writing...

 during the reign of Tsar Petar I

Peter I of Bulgaria

Peter I was emperor of Bulgaria from 27 May 927 to 969.-Early reign:Peter I was the son of Simeon I of Bulgaria by his second marriage to Maria Sursuvul, the sister of George Sursuvul. Peter had been born early in the 10th century, but it appears that his maternal uncle was very influential at...

 in the 10th century. It most probably arose in what is today the region of Macedonia

Macedonia (region)

Macedonia is a geographical and historical region of the Balkan peninsula in southeastern Europe. Its boundaries have changed considerably over time, but nowadays the region is considered to include parts of five Balkan countries: Greece, the Republic of Macedonia, Bulgaria, Albania, Serbia, as...

 as a response to the social stratification that occurred as a result of the introduction of feudalism

Feudalism

Feudalism was a set of legal and military customs in medieval Europe that flourished between the 9th and 15th centuries, which, broadly defined, was a system for ordering society around relationships derived from the holding of land in exchange for service or labour.Although derived from the...

 and as a form of political movement and opposition to the Bulgarian state and the church.

The Bogomils called for a return to early Christianity

Early Christianity

Early Christianity is generally considered as Christianity before 325. The New Testament's Book of Acts and Epistle to the Galatians records that the first Christian community was centered in Jerusalem and its leaders included James, Peter and John....

, rejecting the ecclesiastical hierarchy

Ecclesiology

Today, ecclesiology usually refers to the theological study of the Christian church. However when the word was coined in the late 1830s, it was defined as the science of the building and decoration of churches and it is still, though rarely, used in this sense.In its theological sense, ecclesiology...

, and their primary political tendencies were resistance to the state and church authorities.