Pre-Christian era Prior to the adoption of Christianity, the Kingdom of Aksum practised
Semitic polytheism, which spread to the region from
South Arabia. It has also been suggested that Judaism was present in the kingdom since ancient times; it is not known how widely the religion was practised, but its influence upon
Ethiopian Christianity is significant.
Christian era Christianity was introduced to the Kingdom of Aksum primarily by
Frumentius, a 4th-century
Phoenician missionary who was a slave to the king of Aksum. After preaching Christianity in the region, he was freed shortly before the king's death, though he stayed to teach
Ezana of Aksum, who was the king's son and heir to the throne. He eventually converted Ezana to Christianity in the mid-4th century, which became the official religion of the Kingdom of Aksum shortly thereafter. Having established itself as a Christian nation, Ethiopia expanded its borders and spread the religion to the surrounding peoples who practised
traditional African religions,
Judaism, and, later,
Islam. The Aksumites enjoyed friendly relations with the
Byzantine Empire for this reason, Ethiopian monks participated in the
Council of Constance in 1414–1418, an Ethiopian diaspora is documented in
Rome as early as the 15th century, and there are several documented diplomatic missions from Ethiopia to
Spain and
Italy throughout the 15th century.
Islam . Despite officially being a Christian kingdom,
Islam's history in Ethiopia is nearly as old as Islam itself. The first Muslims fled persecution in Arabia in 613 or 615, seeking refuge in the Kingdom of Aksum in an event known as the
Migration to Abyssinia. The
Dahlak Archipelago, now part of Eritrea, came under Muslim rule in the early 8th century; the Muslims there constituted the first permanent Muslim population in Ethiopia. By the 11th century, the area became the independent
Sultanate of Dahlak. There is evidence that the
Shewa region had become Islamized and established a
sultanate in the 12th century, and by the 13th century there was significant Muslim presence in what is now eastern Ethiopia. As part of the Solomonic dynasty's expansions, many Muslim states in the east were conquered or became subjects of Ethiopia. Tensions grew between Ethiopia and the Muslim states, eventually culminating in the
Ethiopian–Adal war.
Judaism The
Beta Israel are an
ethnoreligious group, most of whom now live in Israel, but originated in
Semien. Their origins have been the subject of scholarly debate for decades. The Beta Israel oral tradition is that of an ancient Jewish ancestry, which is usually claimed from the
Tribe of Dan. Written documents describing the Beta Israel date back to the 14th century. Under the reign of
Yeshaq I, the Beta Israel were defeated in a war; he subsequently revoked their land ownership rights (known as
rist) unless they converted to Christianity. Upon losing their land, they became known as
Falasha ("landless, wandering"), which is a term that became used interchangeably with Beta Israel, but is now considered derogatory. ==Economy and technology==