The video was too long for the information content.<p>Short version: the "@" symbol has been around for hundreds of years. It has different names in different cultures. It wasn't on early typewriters but by the 1889 it was. In the 1960s it became part of ASCII, and Ray Tomlinson used it as a symbol for routing email to another computer.<p>BTW, they show the "@" on the 4 key. That's the British typewriter layout. The US keyboard had a "$" on that position, and "@" was on the same key as ¢, to the right of ";". (I believe ¢ disappeared in ASCII because it could be composed as 'c' + '/'.)