What are the discoveries and historical records in ancient electromagnetic phenomena?

Ancient knowledge about magnetism was quite rich. People's ancestors' understanding of magnetism began with the iron smelting industry. A lot of knowledge about magnetism is recorded in ancient books. There is an essential connection between magnetism and electricity. Some ancient records of electrostatic phenomena, such as triboelectrification, electromagnetic phenomena of terrestrial light and aurora, are only juxtaposed with magnetic phenomena. In ancient China, Guanzi was published in the late Spring and Autumn Period. Tujiao, Guiguzi in the Warring States Period, Lu Chunqiu at the end of the Warring States Period, etc. , all describe the natural magnet and its iron absorption phenomenon, and also describe the world's oldest compass "Sina".