Interesting Facts About Technology
The first emails could only be sent to someone using the same local host with two computers literally side by side. In late 1971 Raymond S Tomlinson sent the first useful email to a user separated from the same host by simply implementing a minor addition to the protocol that was being used and chose to use the @ sign in the email address which we still use today. When asked why he chose the @ sign, he said the @ sign just made sense.