I knew the job was dangerous when I took it ...
- Jul 19, 2004
- Out of Bounds
That's what I was wondering. I'm happy with that definition, it's precise - I wondered if they were being sloppy and using it as "a very long time ago" which was giving me problems with the preservation.
The formal / original definition isn't strictly correlated with a linear time index. It alludes to the far (i.e., earlier) side of a relative boundary between undocumented and documented history. This "documentation" may either be records (broadly defined) produced by the given culture or records produced by others noting / describing the given culture.
I'm not sure what the current scholarly consensus may be on attributing this boundary condition.