http://www.phoenixmasonry.org/anno_lucis.htm

Anno Lucis, the year of light, is the date of the creation of the world according to some Christian interpretations of the Bible, when God (in the Biblical book of Genesis) said "Let there be light!" (saying that long before any human knew any English).  The Masons traditionally say the beginning of the world is 4004 B.C., which is 0 A.L.

Hey that's sort of cool. Maybe I'll do that for my future headstone. Except I want to be cremated and have my ashes tossed into uhm not sure yet.

TonyD. Yeah, as Sam implies it is indeed 4004, not 4000. 

There is a handful of good lines about this very thing in the play Inherit the Wind.

All based on Archbishop Ussher, "first day of creation began at nightfall preceding Sunday, October 23, 4004 BC".

It's Latin for "leakus anai," or leaky anus.

Tony D, it's the Board of Trade building. See the south side of the corner at First Street and Third Avenue West. This would've been a good "Where in Duluth?"

I wasn't sure if it was that or the old YWCA building, but I just walked past the YWCA building and I think it said 1908.

Zonafan39 says the Board of Trade building was built in 1891.[citation needed]

NEMHC's Board of Trade Duluth collection and Duluth Seaway Port Authority's Board of Trade history say 1894-1895 (or 1984), though.

And thanks for asking this, David. I was always curious about it when I walked past it.