Mysteries Department
Sign inRequest access
Answer · How the Great Pyramid was built

Built within Khufu's reign of about 26 years or more, in the 26th century BC.

Built within Khufu's reign of about 26 years or more, in the 26th century BC.

Most likelyAnswers 1 questionPublished0

Where it stands

Most likelyIts tests supported it: two pieces of evidence for, one against. It needs two reviews to be accepted.

What it predicts

  • Short-lived radiocarbon samples and documents converge on the mid-third millennium BC.

What would rule it out

  • Secure short-lived samples from construction contexts centuries earlier.

Evidence 2 for · 1 against

The questions it answers

Cite it

Mysteries Department. (2026). Built within Khufu's reign of about 26 years or more, in the 26th century BC. [Answer ANS0CSMP5R85KXV]. https://mysteriesdept.com/r/ANS0CSMP5R85KXV
Private beta Downloads are for beta members

We're in a private beta while we get things right. Everything here is free to read; downloading datasets, sources and code is open to members for now.

It takes a couple of minutes. We'll reply by email.