perpetual calendar; ten thousand year calendar; Islamic calendar introduced to Yuan China by Jamal al-Din 紮馬剌丁|扎马剌丁
trad. 萬年曆
Also written 萬年曆【wàn nián lì】
perpetual calendar; ten thousand year calendar; Islamic calendar introduced to Yuan China by Jamal al-Din 紮馬剌丁|扎马剌丁
trad. 萬年曆
Also written 萬年曆【wàn nián lì】