Answer · Antikythera Mechanism
The ring had 365 holes, one per day of the Egyptian civil year.
The ring had 365 holes, one per day of the Egyptian civil year.
Where it stands
Most likelyIts tests partly supported it: one piece of evidence for, two against. It needs two reviews to be accepted.
What it predicts
- The mean hole spacing on the surviving arc, with the ring radius, extrapolates to 365 within error.
- The Egyptian month names on the ring divide it into twelve 30-day months plus five days.
What would rule it out
- The surviving hole spacing and radius exclude 365 at high confidence under a model that accounts for corrosion and fractures.
Evidence 1 for · 2 against
FOR
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 365 holes, one per day of the Egyptian civil year. [Answer ANS0D3FQ6966WEZ]. https://mysteriesdept.com/r/ANS0D3FQ6966WEZ
@misc{mysteriesdept_ans0d3fq6966wez,
title = {The ring had 365 holes, one per day of the Egyptian civil year.},
author = {{Mysteries Department}},
year = {2026},
note = {Answer, catalog key ANS0D3FQ6966WEZ},
url = {https://mysteriesdept.com/r/ANS0D3FQ6966WEZ}
}