The circle was the symbol of Ra, the Egyptian sun god, balance in nature in ancient Greece, and the duality of yin and yang in Chinese philosophy.

Here are some of the most intriguing ancient tattoos, from cultic symbols to complex horse motifs ... from the Arctic circle to the south. One mummy from the Chinchorro culture in what is now ...

Red circles have been drawn around aspects ... Archaeologists say the objects circled in the social media posts are ancient religious symbols, not proof of electricity in ancient Egypt.