Tech

This is the oldest known use of the Maya calendar

Enlarge / An artist’s sketch of what the 300-200 BCE temple complex at San Bartolo looked like in its heyday. (credit: Stuart et al. 2022) Amid rubble buried beneath a Maya pyramid in Northern Guatemala, archaeologists found a broken bit of plaster with a glyph painted on it. A bar-and-dot symbol for the number “7” […]