A letter is a written message conveyed from one person (or group of people) to another through a medium.[clarification needed][1] The term usually excludes written material intended to be read in its original form by large numbers of people, such as newspapers and placards; however even these may include material in the form of an “open letter“. Letters can be formal or informal. Besides being a means of communication and a store of information, letter writing has played a role in the reproduction of writing as an art throughout history.[1] Letters have been sent since antiquity and are mentioned in the Iliad.[2] Historians Herodotus and Thucydides mention and use letters in their writings.[3]
As communication technology has developed in recent history, posted letters on paper have become less important as a routine form of communication. For example, the development of the telegraph drastically shortened the time taken to send a communication, by sending it between distant points as an electrical signal. At the telegraph office closest to the destination, the signal was converted back into writing on paper and delivered to the recipient. The next step was the telex which avoided the need for local delivery. Then followed the fax (facsimile) machine: a letter could be transferred from the sender to the receiver through the telephone network as an image. These technologies did not displace physical letters as the primary route for communication; however today, the internet, by means of email, plays the main role in written communications, together with text messages; however, these email communications are not generally referred to as letters but rather as e-mail (or email) messages, messages or simply emails or e-mails, with the term “letter” generally being reserved for communications on paper.
By Written by Leó Szilárd and signed by Albert Einstein.
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