July 6, 1054: Church legates of the Roman pope march into the church of Michael Cerularius, Patriarch of Constantinople, and place a bull on the altar, excommunicating him. So began of the Great Schism between the Catholics and the Orthodox. (See issue 54: Eastern Orthodoxy)
July 6, 1415: Jan Hus, Bohemian preacher and forerunner of Protestantism, is burned as a heretic in Constance, Germany (see issue 68: Jan Hus).
July 6, 1535: Sir Thomas More (b. 1478), who had recently resigned as Lord Chancellor of England, is executed for treason. He had sided with the pope against Henry VIII in the matter of the king's divorce. He was sentenced to be hanged, but Henry commuted the sentence to beheading (see issue 48: Thomas Cranmer).