An excavation of an archaeological site in Guatemala has uncovered Mayan astronomical records dating to the ninth century A.D. The tabulated numbers, which predate existing Mayan astronomical documents by several hundred years, chart the motion of the moon and also seem to relate to the orbits of Mars and Venus. (And good news: they do not predict the world will end this year –in fact, some of the numbers appear to refer to dates far in the future.) [More]
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Ancient Time: Earliest Mayan Astronomical Calendar Unearthed in Guatemala Ruins