Mysteries Department
Sign inRequest access
Answer · Antikythera Mechanism

The ring had 354 holes, a lunar year, so the Egyptian calendar ring sat over a lunar-year scale.

The ring had 354 holes, a lunar year, so the Egyptian calendar ring sat over a lunar-year scale.

Most likelyAnswers 1 questionPublished0

Where it stands

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

What it predicts

  • Hole spacing extrapolates to about 354.
  • The design makes sense with a second lunar scale alongside the Metonic dial.

What would rule it out

  • A model with realistic corrosion and fracture uncertainties admits 365, or the hole measurements are shown to be biased.

Evidence 3 for · 1 against

The questions it answers

Most likelyThe ring had 354 holes, a lunar year, so the Egyptian calendar ring sat over a lunar-year scale

Cite it

Mysteries Department. (2026). The ring had 354 holes, a lunar year, so the Egyptian calendar ring sat over a lunar-year scale. [Answer ANS0D3FQ78E1S2G]. https://mysteriesdept.com/r/ANS0D3FQ78E1S2G
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.