We have 30 tickets to see “Sisters of Peace,” the story of the legendary peace activists Brigid, Jane, Rita and Kate McDonald. These four biological sisters all entered the convent and became Catholic nuns who devoted their lives to teaching and peace activism. The performance is 2 p.m. Sunday, April 14, at the History Theatre, 30 East 10th St., St. Paul 55101. Please request tickets using the online form. There is a limit of two per person until the 30 tickets are gone.