We can estimate the number by year
And Write one of the events of this year!
its can be everything.(Death, Birth,...)
Or not, we can continue like before!
14th April 1294» Temür Khan, Emperor Chengzong of Yuan known as Temür, grandson of Kublai, is elected Khagan of the Mongols and Emperor of the Yuan Dynasty with the reigning titles Oljeitu and Chengzong.