答案：There are all kinds of inventions in our life. But do you know when these things were invented and who invented them? It is said that the camera was invented by a French painter in 1839. It was used for taking photos. The bicycle was invented by people in England. It was invented in the 1880s and was used for traveling. The potato chips were invented by George Crum in 1853. Of course, it was used for eating. Tea was invented over three thousand years ago. It was invented by the Chinese emperor, Shen Nong by accident. It was used for drinking. I think they are very useful.