Semantics

Memories.  I was working for a large financial firm back in 1999.  Everyone thought the world would end because the computers could not tell the difference between 25',1925 and 2025.  Oh the fun it was going through every document and record adding in the full year so that all sorts of bad things would not happen on January of 00 or 2000.
Now it probably seems quaint that we used a two digit year instead of a full four digit year.  But way back in the last century that was how we referred to years.  I was born in 46', my oldest son was born in 72' and so forth. And then we were confused what do we call the new years, two thousand and one or twenty-oh-one or twenty-zero-one?  Maybe by 2099 we will finally figure it out.