400 years ago, an accidental discovery inspired the Chinese to invent the umbrella. In the pouring rain, a child held up a lotus leaf to protect himself from the rain. However, the lotus leaves on the concave surface accumulated a lot of rainwater and gradually became unable to withstand it. The child had an idea and turned the lotus leaf over and placed it on his head. An umbrella-shaped hat with a convex side facing upward appears. People discovered that umbrella-shaped things could keep out the rain, so umbrellas came into being. Early umbrellas were woven from leaves or grass. Later, umbrellas made of oil paper and bamboo chips, and umbrellas made of silk appeared. 20O0 years ago, an umbrella with a complete skeleton that could be opened and closed appeared again. Another saying is: Lu Ban invented the umbrella. In ancient times, people didn’t like to go out when it rained. Because there were no umbrellas at that time, and you would get wet if you went out. One day, Lu Ban was walking on the road, and it suddenly rained. He He had no choice but to come to a pavilion to take shelter from the rain. At this time, Lu Ban was thinking: If there could be something that could block the rain, people would not have to be afraid of rain when going to the streets. He looked up and saw the shape of the pavilion, so He had an idea in his mind. When he got home, he made a stand with a few wooden sticks and an oilcloth on top, thus creating the world's first umbrella.