jan 1, 120000 BC - Possibly the earliest evidence of use of symbols etched onto bone.
Description:
"Prehistoric bone etchings believed to be among oldest evidence of human use of symbols". https://phys.org/news/2021-02-prehistoric-bone-etchings-believed-oldest.html phys.org. Retrieved 12 February 2021.Prévost, Marion; Groman-Yaroslavski, Iris; Crater Gershtein, Kathryn M.; Tejero, José-Miguel; Zaidner, Yossi (20 January 2021). "Early evidence for symbolic behavior in the Levantine Middle Paleolithic: A 120 ka old engraved aurochs bone shaft from the open-air site of Nesher Ramla, Israel". Quaternary International. 624: 80–93. doi:10.1016/j.quaint.2021.01.002. ISSN 1040-6182. S2CID 234236699. Retrieved 12 February 2021.
Added to timeline:
Date:
jan 1, 120000 BC
Now
~ 122106 years ago