May 21, 1738: Charles Wesley, who would cofound Methodism with his brother, converts to Christianity while sick with pleurisy. "In the name of Jesus of Nazareth, arise and believe, and thou shalt be healed of thy infirmities," a mysterious voice told him in his sickbed. "I believe, I believe," he replied. One year later on this date, he wrote "O for a Thousand Tongues" to commemorate the event.