1873, after returning from France, Wang Chengrong, an overseas Chinese, made the first domestic telegram in China with Wang Bin, and sent it to the Qing government for self-management. Wang Chengrong pointed out: "Although China's postal service and beacon are fast, they are not as fast as foreign telegrams. ..... Today, a company and Bin made a device for transmitting Chinese characters, with sixteen as the key link and ten as the eye. Word count by word count, word count by word count. You can shoot thousands of words, which can reach more than a thousand miles. " Unfortunately, the Qing government did not adopt Wang Chengrong's suggestion, and the telegraph invented by him and Wang Bin did not spread to the world.