On May 5, 2000, five days after the canonization of St. Faustina, the Vatican decreed that the Second Sunday of Easter would be known as Divine Mercy Sunday. In his second encyclical, “Rich in Mercy,” St. John Paul II offered an extended meditation on God’s mercy, which he calls “the greatest of the attributes and perfections of God.” He returned to this theme throughout his pontificate. John Paul II died in April 2005 on the vigil of Divine Mercy Sunday, was beatified on Divine Mercy Sunday, May 1, 2011, by his successor, Pope Benedict XVI, and was canonized on Divine Mercy Sunday, April 27, 2014, by Pope Francis.