AD 29

Baptism of Jesus

Jesus is baptized by John in the Jordan

The earliest Gospel has Jesus travel from Nazareth to undergo John’s baptism of repentance — an awkward detail that later Christian writers had to explain.

Why the year is closer to 29 than 26

No surviving source gives a calendar day for the baptism or labels it as 26 CE. Luke dates the start of John’s preaching to the fifteenth year of Tiberius, and a study comparing literary, inscriptional, numismatic, Jewish, Roman and Christian evidence concludes that marker most naturally places the baptism in 29 CE.

The 26–27 proposal depends on counting Tiberius’s reign from a supposed period of joint rule with Augustus. The same study found no numismatic or inscriptional evidence that contemporaries counted his reign that way.

What Mark describes at the river

Mark’s Gospel says Jesus came from Nazareth in Galilee and was baptized by John in the Jordan. As he emerged, he saw the heavens open, the Spirit descend like a dove, and heard a heavenly voice address him as the beloved Son.

That voice speaks to Jesus in the second person rather than addressing the crowd. The descent of the Spirit and the voice are claims within the Gospel narrative, not independently verifiable historical observations.

Not a preaching debut

Jesus does not begin public preaching at the river that same day. In Mark’s sequence he next spends forty days in the wilderness, and only after John’s arrest does he begin proclaiming in Galilee.

The baptism itself is widely accepted in historical-Jesus scholarship, even though the theological vision and heavenly voice cannot be verified in the same way. That acceptance is broad but not unanimous: a 2023 critique has challenged the strength of the consensus.

Sources

Researched 23 Aug 2026 7 sources 2 audit passes Date disputed

How this was checked

Researched from the web into a fact sheet, rewritten from that sheet, then audited against it by a different model. How the pipeline works →

Date disputed. Sources disagree; the research places it at ~0029.

What the sources leave uncertain

No surviving source gives a calendar day or directly labels the baptism as occurring in 26 CE.
The 26–27 proposal depends on counting Tiberius’s reign from a supposed period of joint rule with Augustus. A 2022 study found no numismatic or inscriptional evidence that contemporaries counted his reign that way.
Depending on how the fifteenth regnal year is mapped onto ancient calendars, parts of the relevant period can fall in late 28 and 29; 29 is the best-supported single year in the consulted chronological study.
Scholarly acceptance of the underlying baptism is broad but not unanimous; a 2023 critique has challenged the strength of that consensus.