What are the ways to transmit information in ancient and modern times? What's the story?

Ancient information transmission mode: 1. Migratory birds, especially pigeons and geese, are used as communication tools. 2. the way of stuffing, such as hiding in fish belly, cake, steamed bread, etc. 3. Special sounds, such as bells, drums and firecrackers. 4. Lights, firelight, such as Kongming lanterns and beacon towers. 5. There are other signs and decorations, such as bait. Such as telephone, fax, telegram, television, etc. 2. Wireless communication transmission, such as walkie-talkie, BP machine (to be eliminated), mobile phone and radio 3. Digital communication transmission, the most familiar, networked computers, digital TV 4. The paper communication and dissemination of ancient stories such as letters and newspapers, and the postal service developed unprecedentedly in the Sui and Tang Dynasties. The official postal transport line in the Tang Dynasty centered on Chang 'an, the capital city, radiating in all directions and reaching the frontier, with a post station about 30 miles away. According to the Six Codes of the Great Tang Dynasty, at its peak, there were 1 639 post stations in China, with more than 20,000 people specializing in postal services, including 1.7 million post soldiers. The post is divided into three types: land post, water post and waterway merger. Each station is equipped with a station house, a post horse, a post donkey, a post boat and a post yard. Post-horse relay is an early organized mode of communication. The "Postman" sculpture is located in Jiayuguan Railway Station Square, based on the mural tomb of Wei and Jin Dynasties in Jiayuguan. With a simple document in his hand, the postman galloped at high speed on all fours. This brick mural was taken as the theme of a small stamp by the First Congress of the All-China Philatelic Federation 1982, which shows that Jiayuguan is one of the cradles of information culture in China. Hongyan carries books.