Era of the Incarnation

chronology

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June 26, 2026

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The Christian Era, also known as the Era of the Incarnation, marks the epoch of Jesus Christ's birth. This system, developed by Dionysius Exiguus around 525 CE, uses years reckoned as BC (before Christ) or AD (anno Domini, "in the year of the Lord"). While commonly believed to start at year 0, there is no year zero; instead, it transitions from 1 BC to 1 AD.12

The precise year of Jesus' birth is uncertain, with historians suggesting a range between 6 and 4 BC, based on biblical accounts of Herod the Great's reign. The doctrine of the Incarnation itself is central to Christianity, asserting that God became human in the person of Jesus Christ, who is both fully divine and fully human. This belief was further defined by early church councils, such as the Council of Nicaea and the Council of Chalcedon.234

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chronology
Christian
…abolished, in favour of the Era of the Incarnation, in Catalonia in 1180, in Aragon in 1350, in Castile in 1383, and in Portugal in 1422. The Era of the Passion, commencing 33 years after that of the Incarnation, enjoyed a short vogue, mainly in 11th-century France.
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…abolished, in favour of the Era of the Incarnation, in Catalonia in 1180, in Aragon in 1350, in Castile in 1383, and in Portugal in 1422. The Era of the Passion, commencing 33 years after that of the Incarnation, enjoyed a short vogue, mainly in 11th-century France.
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