May 7, 1274: The Second Council of Lyons convenes with the goal of reunifying the Roman and Greek churches. Orthodox delegates agreed to recognize the papal claims and recite the Creed with the filioque clause, but the union was fiercely rejected by the majority of Orthodox clergy and laity fiercely rejected the union (see issue 54: Eastern Orthodoxy)
May 7, 1605: Russian prelate Nikon, patriarch of Moscow and the head of the Russian church, is born in Valdemanovo. When he tried to reform the church in 1642, a schism erupted, and the church deposed and banished him (see issue 18: Christianity in Russia).
May 7, 1833: German pianist and composer Johannes Brahms is born in Hamburg. Intensely religious, he wrote many works for the church though one never officially employed him. He even compiled the biblical texts for his "German Requiem" himself.
May 7, 1839: Hymnwriter and pastor Elisha A. Hoffman is born in Pennsylvania. His songs include "I Must Tell Jesus," "Down at the Cross," "Are You Washed in the Blood?" and "Leaning on the Everlasting Arms.
January 24, 1076: Germany's Henry IV convenes the Synod of Worms to secure the deposition of Pope Gregory VII. The Synod charged the pope with serious crimes, called upon Rome to depose him, and issued other anti-papal statements. The pope quickly excommunicated Henry. One year later, Henry traveled to Canossa, Italy, and stood three days in the snow in an attempt to gain Gregory's forgiveness. Gregory granted it, but the two men soon fought again; Henry set up an antipope in Gregory's place.