☆ Yσɠƚԋσʂ ☆ to Mathematics · 2 years agoCistercian numerals invented by the Cistercian order of monks in the 13th century.kottke.orgexternal-linkmessage-square0fedilinkarrow-up11arrow-down11
arrow-up10arrow-down1external-linkCistercian numerals invented by the Cistercian order of monks in the 13th century.kottke.org☆ Yσɠƚԋσʂ ☆ to Mathematics · 2 years agomessage-square0fedilink