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LATENT REFERENCES / TAG2

Numa's Calendar

Archive curator and editor: Keigo Yoshida

This reference note belongs to Tag2 in Latent References, an archive curated by Keigo Yoshida. Its archive region is Astronomy · Space · Calendars. The note preserves its source text and links so that readers can trace the material behind the 3D map.

Collection
Tag2
Archive region
Astronomy · Space · Calendars

Archived reference note

English translation of the archived note. JP shows the original text. Source links and literal code are retained; the translation does not update or independently verify the source claims.

Numa's calendar: In 713 BCE, Roman king Numa Pompilius reformed the calendar, adding Jānuārius, corresponding to today's January, and Februārius, corresponding to February. Numa changed every month with 30 days to 29 days. A common year becomes 355 days long.

Source updated 2023-12-20 · Snapshot 2026-10-08

Why this topic?

The text describes Numa’s Roman calendar reform, months and the length of the year.

This source-reviewed classification is an editorial interpretation. It does not replace calculated similarity or original source links.

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