Chung Ling Soo was a man who pretended to be a Chinese magician. He wore a blue and gold costume and spoke only in Chinese to make people believe he was from China. He performed magic tricks on stage in front of large audiences from different parts of the world.
However, Chung Ling Soo was not actually Chinese. He was actually an American man named William Ellsworth Robinson. He pretended to be Chinese so that people would be more interested in his magic shows. This act of pretending to be someone else is called "playing a character" or "impersonating someone."
William Ellsworth Robinson became famous as Chung Ling Soo and even traveled around the world to perform his magic shows. He was particularly known for a trick where he would catch a bullet fired from a gun with his teeth. This was a very dangerous trick, and in 1918, during one of his shows, something went wrong and he was shot in the chest. He died shortly after.
It was only after his death that people discovered that Chung Ling Soo was actually an American man, and not a Chinese magician. This caused a lot of controversy at the time, as people felt that William Ellsworth Robinson had been deceiving them. However, his legacy as Chung Ling Soo lives on as a famous magician and entertainer.