Fans were invented by Chinese ancestors, and China was the first country to use fans in the world. According to Records of the Historian, 65,438+00 male and female magpies were presented to Zhao Haoqi during the reign of King Zhao of Zhou. When summer comes, people make fans out of the feathers of Danque, which are sometimes called "striped harmony" or "gray shadow". This is the earliest recorded feather fan in history. In ancient times, fans were usually used as etiquette tools for rulers, covering the sky and the sun for kings and nobles when they went out for inspection, and also being a symbol of imperial power. Using fans as fans to cool down began in the Han Dynasty. At that time, there was a saying in the history books that "dragons cause rain, and fans chase away the heat."