Communication has played an indispensable role in the history of human civilization and provided a convenient way for human beings to communicate. The birth of language and writing laid the foundation of civilized society, and communication provided an important medium for the dissemination of language and writing, so that culture could be widely disseminated and exchanged between different regions. In ancient societies, when transportation was inconvenient, people used various peculiar ways to communicate over long distances.
First of all, ancient correspondence presents a variety of anecdotes. Due to the inaccessibility of transportation in ancient China, the channels for information dissemination were quite limited. The ancients had a wealth of fantasies about the limited means of communication, such as the blue bird to pass the book, the fish to pass the ruler, the wild goose to pass the book, the yellow ear to pass the book, and so on. These stories became legends in ancient literature.
According to folklore, the blue bird was a subordinate who sent a message to the Queen Mother of the West. In the "Stories of Han Wu" and "Naturalist Records" circulated in the Jin Dynasty, the blue bird formed an indissoluble bond with Emperor Wu of the Han Dynasty. Whenever the Queen Mother of the West sent a messenger to the world, the blue bird was always the first to notice. They flutter lightly, as if to bring a mysterious message to the world. Dongfang Shuo once explained that the blue birds were messengers of the Queen Mother of the West, and their appearance heralded the imminent arrival of the Queen Mother of the West. So, with reverence, people sprinkled the courtyard to welcome the divine goddess. In later literary works, the image of the blue bird is even more deeply rooted in the hearts of the people. Li Bai once wrote: "I wish to repay Sauvignon Blanc with three blue birds." In the poem, the blue bird becomes a messenger of lovesickness. Li Shangyin also used the mouth of the blue bird to express his thoughts about his distant relatives: "There is no way to go to Pengshan, and the blue bird is diligent to visit." In the poet's pen, the blue bird is not only a magical creature, but also carries people's deep emotional sustenance.
The Blue Bird Passes on the Book of Fish Ruler Element, which refers to the words of the ruler element hidden in the fish belly, which is secretly spread thousands of miles away. As recorded in "Historical Records of Chen Shi's Family", Chen Shidan's book and silk said "Chen Shengwang", and then let people wrap the silk in the fish belly, which is a clever plan for political propaganda. Later generations called this the fish ruler element, which is mostly used to refer to the placement of information in a fish-shaped box, placing affection on the fish, and conveying thoughts and affection.
There is no such thing as a real Hongyan biography. According to the Book of Han, Su Wu was ordered to send an envoy to the Xiongnu, but was trapped by the Xiongnu due to the involvement of his subordinates. Later, Emperor Zhao of the Han Dynasty succeeded to the throne, and the Xiongnu made peace with the Han Dynasty. The Han Dynasty hoped that the Xiongnu would release Su Wu and others, but the Xiongnu flatly denied it, falsely claiming that Su Wu was no longer alive. It wasn't until the Han Dynasty envoy came to the Xiongnu again that Su Wu's subordinate Chang Hui met with the envoy late at night and explained to him in detail what had happened. Chang Hui also taught the envoy to say to the leader of the Xiongnu: "The Son of Heaven shot a wild goose in the forest, and a letter was tied to its feet, saying that Su Wu and others were in the wilderness and swamp. This is the origin of Hongyan's biography. Therefore, Hongyan Biography is not an actual means of communication, but a symbolic way of communication.
The biography of Su Wu Shepherd Yellow Ear originated from the "Narrative of Differences" in the Liang period of the Southern Dynasty. Huang Er, the name comes from the dog raised by Lu Ji, and with Lu Ji going to Luoyang to be an official, he also set foot in this prosperous place together. This dog is witty and intelligent, as if he can understand human speech, and has the feat of borrowing someone from 300 miles away to deliver a message, and then find it home alone.
Lu Ji has not communicated with his family for a long time, and he is very worried. So, he decided to use Huang Er's magical skills to let him pass on the book on his behalf. When Huang heard this, his tail wagged happily, as if in response to his master. Lu Ji put the family letter into the bamboo tube and carefully tied it around the neck of the yellow ear.
Huang Er embarked on the long post road, foraging for food on his own when he was hungry, and snuggling up to the river crosser when he encountered the river, and his cute appearance made people can't help but lend a hand. Whenever it gets on the boat and crosses the river, it shows its coquettish side and is endearing. And once ashore, it gallops away like an arrow from a string.
Finally, Huang Er arrived at Lu Ji's house, made a sound from the bamboo tube in his mouth, and motioned for the family to take out the letter. After reading the letter, the family decided to ask Huang Er to bring back a reply. In the same way, they put the letter in a bamboo tube and tied it around Huang Er's neck again.
After receiving the reply, Huang Er quickly set off and returned to Luoyang. Whether it is the mountains and rivers or the dangerous post road, it cannot stop its determination to serve the land machine.
In that era, it took people 50 days to go back and forth, but it only took half a month for Huang Ear to pass the book. Lu Ji, a native of Wu County, Wu County, is a person from Suzhou, Jiangsu Province. From Luoyang to Suzhou, the straight-line distance is nearly 1,000 kilometers, and if the dog is used as the medium of communication, it is undoubtedly a kind of Arabian Nights. This also highlights the lack of folk post posts from the side, triggering people's fantasies about using dogs to deliver information. In ancient societies, the official communication system was more developed and complete than the civil communication methods. In order to meet military needs, the ancients established a systematic beacon transmission system. As early as the pre-Qin period, Fengsui has appeared and has been widely used. In the Mozi Order, there is a record that "the beacon will be raised during the day, and the fire will be raised at night", which means that the beacon will emit smoke during the day and set fire at night to transmit the signal. These beacons are not isolated, but are connected to each other, forming a vast communication network. When encountering the enemy's situation, the beacon tower will quickly send out a signal, and the surrounding beacon towers will also be lit one after another, transmitting emergency military information layer by layer, this system has been further improved in later history, and has become an important means for border defense to transmit emergency military information, and has played a huge role in defending border security.
Fiberhome communication has had a set of strict procedures since ancient times. According to the Song Dynasty's "Wujing General Essentials", when there was an enemy situation in the frontier, more than 50 infantry cavalry, or less than 500 troops, set off a beacon to show warning. If the enemy intends to attack, two torches are to be set off as a warning. When the number of enemies is more than 500 and less than 3,000, the same two torches are fired; If the number of enemy cavalry is more than 500 and less than 1000, when planning to attack, three torches will be fired; If the enemy gathers more than 3,000 cavalry, it is still necessary to set off three torches as a warning. In the case of "more than 1,000 Yu thieves, I don't know the number of heads" and "more than 10,000 Yu thieves", it is necessary to set off four torches to show warning. When the enemy retreats, all it takes is to set off a beacon to signal that the border is at peace. 
Beacon. In addition to the beacon fire, the flying pigeon is also one of the means of ancient military communication, which is the use of the pigeon homing characteristics, the use of carrier pigeons for one-way transmission of messages. During the Southern Song Dynasty, the "Qi Dongye Yu" recorded the scene of the army using pigeons to transmit messages, revealing the unique value of pigeons in transmitting messages. In both world wars, carrier pigeons still played an irreplaceable role and became an important means of communication in the military.
In ancient China, the post was an important means of official communication, and it was also the most common means of communication. It is set up at certain intervals with post stations as nodes to provide convenience such as food, lodging, carriages and horses for messengers. The existence of these post stations enables important information such as documents, military intelligence, appointments and dismissals between the government and the local government to be transmitted quickly and with high efficiency. The origin of the post can be traced back to the pre-Qin period, and it is recorded in the "Zhou Li" that there are stations that provide accommodation, accommodation and rest in the Lu, Suzhou, and city on the road of the country, so as to facilitate the progress of the post post. In "Mencius", there is also a description of the post post, Confucius said: "The popularity of Lourdes is faster than the delivery of mail." This fully illustrates the important position and role of the post post in ancient society. Through the post, people can quickly transmit information and exchange ideas, thereby promoting the progress and development of society. 
After the unification of the six countries in the Qin Dynasty, the country began to build a large number of construction and chidao. These roads not only connect the cities, but also greatly improve the efficiency of the post system. In the Han Dynasty, the post system was further improved, according to the "Book of the Later Han Dynasty", "the post horse is thirty miles away, and the death is all clouds", which vividly depicts the grand scene of the post post. In the Sui and Tang dynasties, water and land post stations went hand in hand and developed together. The Tang Dynasty created the Feiyi system, which was specially used to deliver emergency documents. In the Song Dynasty, the advent of urgent foot delivery brought the speed of the post post to a new height. It is described in "Dream Creek Writings", "With the wooden brand vermilion lacquer ** word, the light is dazzling, like flying lightning, and those who look at it all avoid the road, and travel more than 500 hours a day." "It's amazingly fast. The Ming Dynasty inherited the scale of the previous post, and in the Qing Dynasty, the ancient postpost communication began to decline. At the same time, the modern postal communication system gradually emerged, gradually replacing the traditional postal system. 
In ancient times, although China had a post system, its services were limited to the delivery of official documents, and ordinary people did not have the opportunity to enjoy them. Before the Ming Dynasty, when people were eager to communicate with distant relatives and friends, they often had to rely on passing merchants and scholars to help carry letters. Merchants, because of their frequent business contacts, naturally became ideal candidates for piggybacking letters. However, due to the irregular itinerary and long intervals, the risk of losing letters is greater. In "The New Language of the World", a story is recorded: When Yin Hongqiao, the Shou of Yuzhang County, was recalled to Jiankang, the local residents begged him to help carry the family letter. However, after arriving in Jiankang, Yin Hongqiao put all the letters in vain, and said coldly: "The sinking sinks by themselves, and the floating floats by themselves, Yin Hongqiao can't write a letter to the mail." As soon as this statement came out, the idiom of "put it into Hong Qiao" spread. It was not until the Ming Dynasty that there was finally a civil letter bureau born for the transmission of letters from the people. This is a private commercial organization that sends letters, parcels, and money to people. During the Daoguang and Xianfeng periods of the Qing Dynasty, the Minxin Bureau was in full swing all over the country and had become the mainstream way of communication among the people. However, the good times did not last long, and in 1935, the Minxin Bureau was banned by the national ** and gradually replaced by a modern postal communication system. 
The original site of the Minxin Bureau, the ancient Chinese communication method, like an invisible link, has played a vital role in the long history of Chinese civilization. Whether it is the management of local governments, the issuance of government decrees, or the transmission of military intelligence by the army, or the transmission of letters by ordinary people, it is inseparable from the progress of means of communication. These ancient methods of communication, like silent history books, have witnessed the prosperity and glory of the Chinese nation. Nowadays, with the rapid development of science and technology, the means of communication are changing with each passing day, and the world's information is at your fingertips. However, all this convenience is inseparable from the solid foundation of the ancient communication system. Like a towering tree, its roots are deeply rooted in the earth, and its branches and leaves can reach the sky. Ancient communication methods are the foundation of this big tree, providing a steady stream of nutrients for the vigorous development of modern communication.