What Day is It? Depends on whose Calendar You Consult
Just when you think you know what day it is, along comes this research on the ancient Mayan calendar.
By fifth grade, most schoolchildren know that a week contains seven days, a month contains either 30 or 31 days (or 28 days, in those strange “leap years”), and a year contains 12 months and 365 days.
That seems self-evident, right?
Not so fast.
The quasi- (increasingly) hegemonic calendar long common across the global North and, now, parts of the global South has long had competitors—including the ancient Mayan calendar, which features an 819-day cycle.
What might have motivated Mayan scholars to orient a calendar around 819 days?
New research by anthropologists John Linden and Victoria Bricker from Tulane University suggests intriguing explanations. Ancient Mayans were astute astronomers and mathematicians and, according to Linden and Bricker, calculated human calendrical systems based on cyclical orbits of Mercury, Jupiter, Mars, Venus, and Saturn. The article linked here offers more detailed calculations that, to my non-mathematical eye, sure seem convincing.
When I lived among the Beng in Côte d’Ivoire, I became used to their indigenous temporal system, based on a six-day week. But the Beng also acknowledged the seven-day week of their neighbors, and they easily interdigitated the two systems: every 42 days, a sacred day required special rituals acknowledging the intersection of the two calendars.
In other words, the Beng don’t dismiss alternate calendars as mutually incompatible. Maybe they are better anthropologists than those in the global North who might easily deride the Mayan calendar as quaint but anachronistic.
