Aleteia, Philip Kosloski: After King Henry VIII proclaimed himself supreme head of the Church in England and Wales, a violent wave of anti-Catholic persecution began — and lasted over a century. It started with the executions of Sts. Thomas More and John Fisher, but didn’t end there. Hundreds were killed between 1535 and 1679; the Church recognized the heroism of 40 martyrs from England and Wales in a canonization ceremony on October 25, 1970. (Later, a separate feast on May 4 was created to recognize the 284 canonized or beatified martyrs of the English Reformation.) More here.