Maya numerals use a vigesimal place-value system

Repeated relationships among notches are used to test arithmetic, calendar and slide-rule interpretations.

It challenges assumptions that formal numerical reasoning began only in literate Eurasian civilizations.

The paper presents a hypothesis, not certainty, reminding users that archaeological objects can sustain multiple mathematical readings.

A 21 December 2012 article uses the end of a Long Count cycle to explain Maya calendrical mathematics.

The 260-day ritual count and other interlocking cycles demonstrate modular thinking and systematic enumeration.

It explains that the calendar's cycle ending was a mathematical rollover, not a prediction of the world's destruction.

The 7 October 2013 article examines an Indian temple inscription containing circular zero symbols.

Numbers in the inscription show zero functioning as a written positional digit in practical measurement and donation records.

It emphasizes that the so-called Arabic numerals reached Europe through a longer Indian-Arabic chain of transmission.

The publication explores possible cultural relationships while avoiding the claim that philosophy alone mechanically produced mathematical zero.