It was an age of the great charity which impelled missionaries to cross both endless seas and narrow channels. They bore in their hands the greatest tool for evangelisation Holy Church has ever wielded, the Roman Missal. St Pius V issued it in 1570 at the behest of the Council of Trent, and great saints took it to the corners of the earth. Holy Mass brought converts and martyrs to nourish the seeds of Faith wherever it was prayed, in a mysterious bond of unity with other Catholics, bridging the globe and binding the centuries.