The Internet: now we are 40

At 1030pm on 29th October, 1969 the first message transfer beween two computers took place, on what was then known as the Arpanet. The first message was 'lo'; it was meant to be 'login' but the system crashed after the first two letters.

I believe the designer went on to produce Microsoft Vista.

I have had the internet since 1990 and can confidently say it is the most life changing thing ever. It enables you to read this blog, for example.