The Maya tradition of Mesoamerica (Preclassic–Postclassic, c. 2000 BCE–16th c. CE) —
a **vigesimal** (base-20) place-value number system that included a symbol for
**zero**, the interlocking sacred and civil calendars (the 260-day Tzolkʼin, the
365-day Haabʼ, the 52-year Calendar Round, and the Long Count), and precise Venus and
eclipse astronomy recorded in the surviving codices. Genuinely one of the most
mathematically and astronomically advanced pre-modern cultures — and one whose record
is badly mediated by colonial destruction, which is the caution this node carries.
a **vigesimal** (base-20) place-value number system that included a symbol for
**zero**, the interlocking sacred and civil calendars (the 260-day Tzolkʼin, the
365-day Haabʼ, the 52-year Calendar Round, and the Long Count), and precise Venus and
eclipse astronomy recorded in the surviving codices. Genuinely one of the most
mathematically and astronomically advanced pre-modern cultures — and one whose record
is badly mediated by colonial destruction, which is the caution this node carries.
Maya numeracy was positional and included zero — a conceptual achievement reached
independently and, for place-value use, early by world standards. Time was the great
application: the 260-day Tzolkʼin (13 × 20) and 365-day Haabʼ meshed into a 52-year
Calendar Round, while the Long Count tracked absolute days from a mythic zero date.
Venus (synodic ≈ 584 days) and eclipses were tabulated in the Dresden Codex with
remarkable accuracy. El Castillo at Chichén Itzá is the built expression of this
calendar-cosmology (see site node).
Era (prose)
Preclassic–Postclassic (c. 2000 BCE–16th c. CE); Classic c. 250–900 CE
Region (prose)
Yucatán, Petén (Guatemala), Chiapas — Mesoamerica
Evidence
Label
Base-20 place value with zero, and the calendars
Body
Maya arithmetic was positional (base-20) and used a zero symbol; the meshing
Tzolkʼin (260 days), Haabʼ (365 days), 52-year Calendar Round and Long Count
structured sacred and civil time.
Citation
Anthony F. Aveni, *Skywatchers of Ancient Mexico* / *Skywatchers* (Univ. of
Texas Press, 1980/2001); the Dresden Codex.
Source tier
Label
Venus and eclipse astronomy (Dresden Codex) → number: 5
Body
The Dresden Codex Venus table tracks the ~584-day synodic period and the 8-year /
5-cycle Venus resonance; the codex also contains eclipse-warning tables.
Citation
Aveni, *Skywatchers* (2001); Harvey M. Bricker & Victoria R. Bricker,
*Astronomy in the Maya Codices* (American Philosophical Society, 2011).
Source tier
Label
COLONIAL-FILTER caveat (the load-bearing flag)
Body
Most Maya books were destroyed at the Conquest; only three or four codices survive,
and much ethnographic knowledge passed through hostile colonial sources — above all
Diego de Landa, who both recorded and *burned* Maya texts.
Citation
Diego de Landa, *Relación de las cosas de Yucatán* (c. 1566) — see site:
Chichén Itzá.
Source tier
Curation status
Import key
6beb9efa256060c4ab29c2db82e70f4d197afff7
Import hash
e35247ad19fe5cfc4d0c07677286ca6937b8a83a