Abacus/Talk

This text came from an old public domain resource (copyright now expired) and, it turns out, duplicated an entry already added under an OldLink; I've redirected that page to this one. I wonder, though, if we should preserve the text as-is, as was done on the old one, or make every attempt to update it so it's useful as something other than a sociological curiosity. I personally favor updating it, but it won't be a problem to restore the old text in its original form if that's what the consensus is. --KQ