Happy Birthday, Spam!
The first recognisable e-mail marketing message was sent on 3 May, 1978 to 400 people on behalf of DEC - a now-defunct computer-maker.
The message was sent via Arpanet - the internet's forerunner - and won its sender much criticism from recipients.
The sender of the first junk e-mail message was Gary Thuerk and it was sent to advertise new additions to DEC's family of System-20 minicomputers.
It invited the recipients, all of whom were on Arpanet and lived on the west coast of the US, to go to one of two presentations showing off the capabilities of the System-20.
Reaction to the message was swift, with complaints reportedly coming from the US Defense Communications Agency, which oversaw Arpanet, and took Mr Thuerk's boss to task about it.
So, how do you plan to celebrate?
Another article, including the actual message