The first inventor in history was Meng Tian. Meng Tian's ancestral home was Qi at the end of the Warring States Period and was highly valued by Qin. He was a general of the State of Qin, and Qin Shihuang valued him very much. Meng Tian was very clever and worked hard since he was a child. At the age of ten, by chance, he invented the writing brush, which solved the problem of writing difficulty. He is a very powerful child prodigy. ?

Before Ying Zheng in Qin Dynasty, books written in China were all carved on bamboo slips with knives, which was particularly time-consuming and laborious to carry. No one can solve this problem for thousands of years, but Meng Tianyi, who is 10 years old, accidentally solved it.

In 250 AD, Meng Tian and his family were playing in the suburbs. While enjoying flowers, birds, insects and fish, Meng Tian shot birds with a slingshot. Later, Meng Tian shot a bird and his family took it back to Meng Tian. Meng Tian found that there was a grass in the bird's mouth, and there were some bristles at one end of the grass, which made him feel furry and funny.

Curious Meng Tian also put grass in his mouth like a bird. Beards stick together because there is saliva in the mouth. Meng Tian is more curious. He tried to write on his hand with his hair stuck together. I didn't expect the written words to be particularly clear and beautiful.

Meng Tian was very excited to discover the new century. He got some such grass. After returning home, he stuck his hair and beard together in the same way, then dipped it in pot ash and tried to write on the bamboo slips. Unexpectedly, soon, not tired. However, grass breaks easily, which is a problem. However, this can't beat the clever Macey day. He used goat hair instead of grass, tied it to a stick to write, and no longer worried about the problem of broken hair.

But new problems are coming again. The words on bamboo slips are not easy to preserve. How will Meng Tian solve it? He is a child prodigy. The talented Meng Tian found that if bamboo slips are replaced by silk, the words will not fall, and the words are beautiful and easy to carry.

Meng Ao, his grandfather, was very happy and told the king of Qin at once. Qin's parents and children were very excited after seeing Meng Tian's demonstration. They greatly praised Meng Tian and asked him to improve on this basis. In this way, the writing brush was invented and spread all over the country. Meng Tian became more and more famous, and every country knew him.