A text file of a list of people from December 12, 1981. Originally had it on a floppy for the IBM PC 5150 and it's made the leap somehow to every new system for over 40 years.
I am convinced (convinced) that in a distant future the answer to some then-unsurmountable technology problem will be found in the depths of some obscure file which has (somehow, much in the way you described) "leaped" from system to system to system for hundreds of years ...
