(:description one plus one plus one plus one plus one is... uh, wait, lemme start again :)
!! Numeracy
Numbers are at the root of it all
!! Roman Numerals
http://www.novaroma.org/via_romana/numbers.html - brief introduction, plus Arabic->Roman converter
I believe the common roman usage was pure additive math; the subtractive-positionals didn't come into vogue until the 1300s or so, long after RNs were out of common usage. some citation at http://en.wikipedia.org/wiki/Roman_numerals#IIII_vs._IV
I note that RNs were still in common European usage at that time, as Arabic numerals were not in vogue until... uh....
!! Arabic Numerals
!! [[#SeeAlso]] See Also
!! [[#Tags]] Tags
[[!scp]] [[!maths]]