1837, a device for transmitting codes was successfully developed, which he called "telegraph" hopefully.
In June, 65438 +0838+10/October, 65438, Morse Sanli successfully sent and received telegrams. 1840 in April, this invention applied for a patent. He tried to persuade others to invest in the production of telegrams, but no one was interested. Morse only has to go to Europe for activities, hoping to promote its application in Europe. But at this time, Wheatstone in Britain has invented electromagnetic telegraph, and Schilling in Russia has also produced other types of telegrams, which greatly extended the communication distance and reached the level of practical application.
1842, morse finally looked forward to the opportunity to show his strength, and the us congress passed a bill to develop telegraph technology. 1843, the us congress decided to allocate 30,000 us dollars to build a long-distance telegraph line between Washington and Baltimore, with a total length of 64.4 kilometers. The following year, the long-distance telegraph was sent and received successfully again.
1844 May 24th is a glorious page in the world telecommunication history. On this day, a grand telegraph communication experiment was held in the US Congress Hall. In the crowded capitol, Morse proudly introduced the principle of telegraph to invited scientists and government officials. His speech aroused great interest of the audience, and people were anxiously waiting for the miracle of "transmitting information by wire".
Morse turned on the power supply, manipulated his telegraph machine with trembling hands for more than ten years, and sent the first telegram in human history to Baltimore: "What a miracle God has created!" " With a series of "ticking" sounds, the news quickly spread to Baltimore dozens of kilometers away. Morse's assistant received the news from him and translated it accurately. Morse's telegram finally succeeded!
First in the United States, then in Britain and other European countries have caused a sensation. On May 24th, 1844 became the internationally recognized telegraph invention day. The reason why Morse's telegraph is simple, accurate, economical and practical is that it uses telegraph coding, which is much superior to the telegraph invented by others. Soon, his telegrams swept the world. Nowadays, Morse code has become the basic method of modern telegraph communication.