There is still evidence of the four histories. According to the relevant public information, you can get a certificate after answering the questions about the four histories. The electronic certificate of Four History Education was obtained by participating in answering questions about Four History on the official account of China University Students' online WeChat. Learning four histories to keep the initial knowledge contest is independently held by colleges and universities, and the certificate of learning four histories to keep the initial knowledge contest is ordinary. Knowledge contest is a form of publicizing and popularizing knowledge of natural science and social science.