Ancient Egypt. Carved green soapstone Ouroboros rings. Ptolemaic. 305-30 BC
"Drawing of three bronze ornaments: a) Karasuk culture c. 1400–1200 BC, diameter around 100mm Abakan Museum; b) Shimao 2000–1800 BC, diameter around 120mm, private museum in Shenmu; c) excavated at Taosi, diameter around 125mm Shanxi province (drawing by John Rawson)."
https://www.cambridge.org/core/journals/antiquity/article/shimao-and-erlitou-new-perspectives-on-the-origins-of-the-bronze-industry-in-central-china/672573C3699701D312E7D2286B973D5F
"In northern northeast Thailand, bracelets like these were by far the most popular metal object, and almost all of them were made of a tin-bronze alloy. A few hundred kilometers south to another prehistoric site, bangles weren’t all that prominent. (Image: The Ban Chiang Project)"
https://penntoday.upenn.edu/news/Pe...acts-Thailand-challenge-archaeological-theory
la tene culture:
https://www.catawiki.com/en/l/14844331-la-tene-culture-ribbed-bracelet-7-3-cm
Ancient Egypt. Carved green soapstone Ouroboros rings. Ptolemaic. 305-30 BC
http://sadigh.weebly.com/featured-artifacts/category/ouroboros
And then Mayan calendar:
https://www.seekpng.com/png/full/32...columbian-mayan-aztec-maya-mayan-calendar.png