1415 - Bohemian reformer and martyr Jan Hus wrote in a letter: 'It is difficult to...esteem it all joy in various temptations. It is easy to talk about...but difficult to fulfill it.'
1683 - English Quaker William Penn signed his famous treaty with the Indians of Pennsylvania. Voltaire once remarked that it was the only treaty never sworn to, and never broken.
1738 - Birth of Samuel Medley, English Baptist clergyman and author of the hymn, 'O Could I Speak the Matchless Worth.'
1775 - Anglican hymnwriter John Newton wrote in a letter: 'True religion is not a science of the head so much as an inward and heartfelt perception.... Here the learned have no real advantage over the ignorant.'
1967 - Paul VI issued the encyclical 'Sacerdotalis Caelibatus,' reaffirming the Catholic Church's requirement of celibacy with the priesthood.
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