Subject: Re: Really Abitrary Points
Date: Aug 09, 2001 @ 23:12
Author: Grant Hutchison ("Grant Hutchison" <granthutchison@...>)
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> Purists, of course, argue that the new millenia doesn't start until
2001.
Yeah, what was all that about? Those purists were never that pure if
you ask me.
We all know the argument - there was no year zero, so the start of
year 2 was just the end of one elapsed year; start of year 11 was the
end of ten elapsed years, start of 2001 the end of 2000 elapsed years.

But the count was set up retrospectively, and one of the few things
we know about the birth of Christ is that it wasn't on the Christmas
Day before AD 1, so there isn't a real historical event to count
from. So we're perfectly free to stick a year zero in there if we
want, and make 1BC = Year 0, 2BC = Year -1, 3BC = Year -2, and so on.
Which is *exactly* the way astronomers have been numbering the years
for a couple of centuries, now. So for astronomers, there *was* a
year zero, and the end of 1999 *was* the end of the 2000th year in
their system!
And who were the "purists" who sniffed at the dumb folk who couldn't
do simple arithmetic? Astronomers.

Grant