This is of course unreasonable. History without written records definitely exists.
History is what happened to people in the past. However, due to many reasons, some history is not recorded, but it does not mean that it does not exist. For example, before human civilization appeared, there were the Jurassic, Triassic, and Cretaceous periods. At that time, the masters of the earth were dinosaurs and some prehistoric creatures. Of course we cannot say that this is not the history of the earth. Although the owners at that time were not us humans, we can understand this period of history through the discoveries and research of archaeologists and scientists.
This is also true in our human history. The most scientific statement now is that we humans started in Africa and evolved step by step from gorillas. After evolution, we became the human beings we are now. The records of human civilization can only be understood in depth through continuous excavation and archeology. We all know that our history originated from the Xia Dynasty. Before the Xia Dynasty, there were legends such as Dayu and the Three Sovereigns and Five Emperors. These are our earliest written records, and we all know that they are legends. After the first dragon in China was unearthed in Puyang City, the recorded history of our civilization has been advanced to 8,000 years ago. This was beyond people's understanding of history before. There is also Sanxingdui culture, which is still a mystery. But what is certain is that it is definitely an earlier civilization recorded in our history books.
Although many people still have questions about the Xia Dynasty and do not know the true history of the Xia Dynasty. But I believe that history can only be understood through people's continuous exploration. History books only record part of history and are an important reference for us. Factors such as the underdevelopment of society at that time must also be taken into consideration. In ancient times, humans tied knots with ropes to record events. It cannot be said that without written records, there would be no history.