The Maya civilization, one of the most notable civilizations of Mesoamerica, occupied the areas of modern Guatemala, Mexico, Belize, Honduras, and El Salvador. It is believed to originate approximately 2000 BCE. It’s only natural that the Maya peoples fascinated with astronomy and celestial mechanics developed advanced mathematical practices and a sophisticated numeral system.
Numbers from 0 to 19The Maya developed a base-20 numeral system using only three different systems to represent various numbers:
- An upside-down turtle shell was used to represent “zero.” The Maya peoples are believed to be the first to use “zero” as a place-holder.
- A dot (.) signified “one” – 3 dots placed in a horizontal row represented number 3;
- A bar (_) meant “five” – 3 bars placed one above the other stood for number 15.
Numbers larger than 19Number 20 was not expressed by four bars placed one above the other as you might think. The Maya represented in with a dot placed high above a turtle shell. To write larger numbers, they used powers of twenties. Thus, 30 was represented as 20 (a “high” dot) +5 (a bar) + 5 (a bar) while 40 was expressed as 20 (a “high” dot) + 20 (a “high” dot) placed above a turtle shell. In fact, the Maya could write any number they wanted using their sophisticated numeric system. For example, 5124 could be represented as 12x20x20+16x20+4, or 2 dots placed above 2 bars that are placed above 1 dot that is atop three lines that are placed above 4 dots. Although the system seems to be extremely complicated, it has an obvious advantage – the Maya could express any number using only three symbols (a turtle shell, a dot, and a bar).
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