[SunkenCiv]

:’) The Sumerian king list (I think at least two copies have survived) has regnal lengths well in excess of 350,000 years, from end to end.

Among the problems (ahem) is that other sources also survive which show that the supposedly end-to-end dynasties are mostly overlapping and parallel. The problems with the numbering systems (and The Flood is mentioned right on the list itself) appear to have come about due to the use of different systems in use in each city, and the lack of a lexicon to figure out (even back then) how to interpret the numbers.

The other possibility is that these numbers refer to something other than years. Months could not be it. Even days would not work, probably, since it would require at least one ruler’s reign in excess of 1000 years.

http://www.livius.org/k/kinglist/sumerian.html

[Little Bill]

I find it interesting that Paleolithic man could draw proportional pictures, engrave the progression of the Moon and seasons on bone, and invent Buttons, yet not know how to count.

Archbishop Usher couldn't.