The death of Don Bosco's mother in 1856 prompted Rua to bring his own mother to live at the oratory where she remained for the next two decades. In 1857 Bosco drew up a set of rules for his helpers.
Don Bosco's mother's death in 1856 led him to bring his own mother to live at the oratory, where she remained for the next two decades.  In 1857, Bosco established a set of guidelines for those assisting him.