Pope Francis (C) prepares to celebrate mass at the Swedenbank Stadion in Malmo, Sweden, on November 1, 2016. Francis is on a two-day visit to Sweden to mark the 500th anniversary of the Reformation -- a highly symbolic trip, given that Martin Luther's dissenting movement launched centuries of bitter and often bloody divisions in Europe. / AFP PHOTO / AFP PHOTO AND POOL / VINCENZO PINTO