Was there really martial arts in ancient times?

There are martial arts such as climbing the eaves and climbing the walls, but because of the popularity of modern martial arts novels, people have exaggerated views. Martial arts have no credible and particularly long history. "Flying around" is a derivative of Taoist immortal skills in Tang and Song legends, and it is a romantic imagination of people. There are some records about ancient martial arts in Qi Jiguang's Ji Xiaoxin's Book, but there is nothing magical about it. In fact, traditional Wushu pays more attention to actual combat, and its appearance is not gorgeous. The actual combat here refers to the real life-and-death battle. The reason why China Kung Fu shocked the world is because of the appearance of family boxing and the extreme kung fu of my family. Internal strength, internal qi and hard qigong exist, but they are by no means so exaggerated in the novel. Hanging coffins is really amazing, but we can't jump to conclusions.