The Septian Calendar (七耀暦 Shichiyo Koyomi?) chronologically details the history events of the fictional Kiseki Series in the The Legend of Heroes RPG franchise. So far up to The Legend of Heroes: Trails of Cold Steel II, most of the details is theoretical based upon actual dates given in the series. * Before the Sepith Calendar (abbreviated as BS or B.S), where Gods descended and conflicted over millenniums ago. After the calendar was founded, history was divided into 3 eras.