Celestial chart: Summer, showing signs of the zodiac, positions of the stars and astrological instruments, engraved by John Emslie (engraving) by . - Bridgeman art images & historical footage for licensing
“Ancient Chinese map of planet Earth’s northern sky is part of the Dunhuang Star Atlas, one of the most impressive documents in the history of astronomy. The oldest complete star atlas known, it dates.
Some of the skulls discovered in a mass grave in the Classic Maya city Uxul featured tooth incrustations with jade, a symbol of high status due to the material's scarcity. The jade would have been placed in cavities purposely drilled into these teeth.