“...the earliest writing in human history [...] in prehistoric cave paintings in Europe [...] made by our species between roughly 15,000 and 40,000 years ago...”
“Ben Bacon, a furniture conservator based in London, U.K. [...] has unveiled what he believes is ‘the first known writing in the history of Homo sapiens,’ in the form of a prehistoric lunar calendar...”
“We do not want to press the controversial (and in many senses, semantic) question of whether writing was a Paleolithic invention; perhaps it is best described as a proto-writing system...”
"...in the form of a phenological/meteorological calendar. It implies that a form of writing existed tens of thousands of years before the earliest Sumerian writing system."