It's odd how some Rings fans have actually calculated the ages of Arda to the Gregorian(?) dating system.
Odd is reading type from an elf who died in the First Age and has never come back. :)
But seriously, Karen Wynn Fonstad did that for her Atlas of Middle Earth. Not really much point other that to give a time reference within that world, but it always amuses me when something pops up in the real world and reminds me.