What is the earliest existing Chinese character?

1. The jokes that reflect the homonym of Chinese characters are: On holidays, the little rabbit said angrily to the deer: You see other girls can receive flowers, why not give them to me? The deer said piteously, because I am a sika deer. Today, in the driving school theory class, the teacher said, "Those who cause serious traffic accidents to escape are forbidden to drive for life." A girl in the back raised her hand and said, "Then I will never get married?" Everyone is going to faint with laughter. A woman came to a man's house to play, and the woman teased the man and said, if you have a piece of land, I will marry you. Then the doorbell rang, and the courier brother said, sir, there is a courier for you.

2. The earliest existing Chinese character is Oracle Bone Inscriptions in Shang Dynasty, about 1300 BC. Later, bronze inscriptions appeared, which evolved into the seal script of the Western Zhou Dynasty, and then the seal script of the Qin Dynasty unified six languages. Official script appeared at the end of Qin Dynasty, cursive script appeared in Western Han Dynasty, and regular script and running script appeared in Eastern Han Dynasty. The strokes of Oracle Bone Inscriptions, Jinwen and Zhuanshu are tactfully continuous. When the strokes of Lishu become horizontal and vertical, they become pure square characters, which are convenient for writing and become the dividing line between ancient and modern Chinese characters.