<prompt> Translate the following text to SwahiliIn a.d. 331, Constantine, the Roman emperor, legalised Christianity and together with his mother, Helen, developed and excavated Christian sites.  <response>: Mwaka 331 KK, Konstantino, mfalme wa Roma, aliruhusu Ukristo uingizwe katika sheria na pamoja na mama yake, Helen, wakafanya kazi ya kuchimba na kugundua maeneo ya Kikristo. 