This 5,500-Year-Old Kish Tablet is the Oldest Written Document
https://www.zmescience.com/science/news-science/origins-of-writing-kish-tablet-5500-years/
"...around 5,500 years ago by first pressing symbols into clay, giving humanity one of its greatest tools: writing.
The Kish tablet, a humble clay slab, marks a key moment in the journey of writing. The tablet is the oldest written document we have, the dawn of recorded history as we know it. ... describing the beer brewing process using malt. Other symbols represent grains, goats, sheep, and agriculture-related activities.
Although archaeologists haven’t been able to decipher every symbol, they believe that Sumerians used the tablets for record-keeping and accounting purposes. .. track their agricultural output, beer quality, and other administrative operations. ... the symbols on the Kish tablet convey messages about economic activities and commodities. .. how barley was used for food and beer production and the role of livestock in Sumerian society.
Moreover, the Sumerians inscribed symbols on wet clay and then baked the tablet such that it remained preserved for thousands of years. This shows how serious they were when it came to managing information and records. ..."