🔬 Discovery

Venus table of the Dresden Codex

Tablas de Venus del Códice de Dresde

Date
c. 1200-1250 · confidence medium
Place
Chichén Itzá / Mayapán, Yucatán, Mexico
Credited to
Maya priest-astronomers
Field
Cosmos & Earth

⚠️ Disputed: the sources disagree.

What was discovered

An almanac predicting the appearances of Venus as a morning and evening star over more than a century, using a 584-day period with corrections that reduce the error to a few hours. It is the most precise astronomical table of pre-Columbian America.

The codex is a copy of older materials, perhaps from the 9th-10th century; the base date of the table is debated.

What it led to

  • a ritual and war calendar linked to Venus
  • the decipherment of Maya astronomy (Förstemann, 1880)
🕸️ View in the graph

Built on

Made possible

Links

Sources✓ verified 2026-09-25