“Sumerian cuneiform and Egyptian hieroglyphs are generally considered to be the earliest examples of true writing systems. Both gradually evolved from proto-writing between 3400 and 3100 BCE. The Proto-Elamite script is also believed to have been in use during this period.“
So that’s at least 3000 years earlier. That’s a big “errr on the side of brevity”!👍👍👍👍🤪🤪🤪🤪🤪🤪