an early competitor to Hindu–Arabic numerals
... that the Cistercian monastic order created an early competitor to Hindu–Arabic numerals with which they wrote years as a single character?
... that the <a href="./Cistercians" id="mwuw" rel="mw:WikiLink" title="Cistercians">Cistercian</a> monastic order created <b id="mwvA"><a href="./Cistercian_numerals" id="mwvQ" rel="mw:WikiLink" title="Cistercian numerals">an early competitor to Hindu–Arabic numerals</a></b> with which they wrote years as a single character?