E-mail has come a long way in 30 years

CNET: “Thirty years ago, a simple message launched a revolution in the history
of human communications.

That dispatch is now considered the first e-mail, or electronic message, to
have been sent from one computer to another through a network. Devised
by BBN Technologies scientist Ray Tomlinson, the system for sending e-mail
was initially a demonstration of what the ARPAnet–the Internet’s
precursor–could do.”