In which country did the earliest human writing originate? What year?

Archaeologists have recently unearthed some written symbols in Harappa, Pakistan, and people think that they may be the earliest written symbols discovered so far. These so-called "plant-like" or "trident-shaped" writing symbols were found on fragments of pottery. According to the identification, these writing symbols were carved around 3500 BC, so Dr. Mishima, the head of the Harappa archaeological team and Harvard University, said that these writing symbols may be about 200 to 300 years earlier than what is considered to be the earliest writing of human beings. It is no accident that Harappa can unearth written symbols. As early as 3500 BC, it was still a small settlement. By 2600 BC, Harappa had become a big central city, but people left here around 1.900 BC, and Harappa was deserted. Dr Mishima said, "A big question is whether we can conclude that we did find real characters, but we found symbols similar to ancient Indian characters." He added that one of the purposes of their research is to "discover more such symbols and track their changes and how to become a writing system". However, a big obstacle to this is that the ancient Hindi script is unique and has disappeared now, so no one can understand it. Similarly, Harappa's language has died out and has not become the basis of other languages. Dr Mishima also said that Harappa's "article" found has nothing in common with the so-called "Rosetta Stone". The Rosetta Stone was discovered in Rosetta, Egypt on 1799. The inscriptions were written by ancient Egyptian hieroglyphics, ancient Egyptian proverbs and Greek characters, from which archaeologists interpreted ancient Egyptian hieroglyphics. This discovery of Harappa will undoubtedly trigger a new debate about the origin of human writing. It is most likely that human writing developed independently in at least three places, namely Egypt, Mesopotamia Plain and Harappa, from about 3500 BC to 3 100 BC.