The transition from a period of time is examined based on the advancement of human understanding. For this reason, "human understanding" is the tool for writing analytical history and philosophy of history. It is better to say that “the history of human understanding” is the philosophy of analytical history. The period of modernism and postmodernism cannot cover the history of human understanding. Because it has promoted most of the factors that hinder the advancement of human understanding as an inseparable requirement of humanity. I have tried to obtain the necessary data for the continuation of the history of human understanding in the collection of "Obvious actuality".

The first lecture on obvious actuality includes basics and fundamentals of readerships and structure of text. I urge the worthy readers to reach a consensus for the continuation of the history of human understanding.