What is history: it is the echo of the past to the future, the reflection of the future on the past. - Hugo
The story of "straw boat borrowing arrows" is: During the Three Kingdoms period, Zhou Yu and Cao Cao fought a great war, because Zhou Yu's army lacked weapons at that time——— arrows, Kong Ming used a strategy to fill all 20 boats with scarecrows and sailed to the Cao army camp, and then beat the drum, Cao Jun thought that Zhou Yu was coming to attack them, so he shot out the arrows like rain. After counting, there were more than 100,000 arrows, which just made up for the lack of weapons in Zhou Yu's army. In fact, the person who "borrowed arrows from the grass boat" was not Zhuge Liang, but Sun Quan. Sun Quan also inadvertently "borrowed" Cao Cao's 100,000 arrows.

According to Pei Song's notes in the Romance of the Three Kingdoms, in the first month of the eighteenth year of Jian'an (213 AD), Cao Cao confronted Sun Quan. In the first engagement, the Cao army was defeated, so it could not hold out. One day, Sun Quan took advantage of the mist on the surface of the water and took a light boat to break into the front of the Cao army from the mouth of the Maosu To observe the deployment of the Cao army. Sun Quan's light boat drums and drums sounded in unison, but Cao Cao was suspicious by nature, and when he saw Sun Jun's rectification of might, he was afraid that he was deceitful and did not dare to go to war. So he ordered the crossbow to fire in unison and shoot at the Wu ship. After a while, Sun Quan's light boat was hit by too many arrows on one side, and the hull was tilted, and there was a danger of overturning and sinking. Sun Quan ordered the bow of the ship to be turned around so that the other side could receive arrows again. After a while, the arrows were flattened, and Sun Jun returned safely. Only then did Cao Cao realize that he had been deceived.
Luo Guanzhong moved the matter of "borrowing arrows from grass boats" from Sun Quan to Zhuge Liang, nothing more than to highlight Zhuge Liang's wisdom. Since the "Romance of the Three Kingdoms", the common people only know that there is "Romance of the Three Kingdoms" but do not know that there is "Romance of the Three Kingdoms", so the protagonist of "Grass Boat Borrowing Arrows" has become Zhuge Liang.