This APP mainly introduces our historical events, so that more people can learn about interesting history, understand modern history and ancient history through our app, so that our history can be carried forward, so that more people can understand our history. Origin, and at the same time, people who are interested in history can deepen their understanding of history. The history test questions have been added, which makes learning history a lot more convenient. It also includes a summary of wrong questions to facilitate the subsequent review of wrong questions and adds a lot of information. Fun, come join us!