That document is generally considered as being the internet’s birth certificate, it recorded when the two computers started communicating.
Note the date 50 is fifty years ago.
Do you remember your first introduction to the internet? Mine was 24 years ago. I was talking to a guy on the phone at work. After I had fixed his problem using a modem. He told me to go to this site, download some software and once I did that to run the software, then told me to *enjoy* and hung up.
Who knew that this would change the world so much?