This is the oldest Maya Calendar Ever Discovered

For years, archaeologists have referred to an ancient set of texts known as the Maya codices to study that ancient civilization's relationship with astronomy and time. But now, a team of archaeologists has discovered a set of murals, hieroglyphs, and astronomical calendars deep in the rainforests of Guatemala, that… » 5/10/12 1:45pm 5/10/12 1:45pm