Papal Bull Unigenitus Issued

Date: January 27, 1343 • Location: Rome, Italy

Pope Clement VI issues the papal bull Unigenitus, laying out the scriptural justification for indulgences, identifying only the Pope and episcopate as capable of accessing the treasury of merit, and establishing a jubilee year every half century.

Pope Clement VI, born Pierre Roger, was head of the Catholic Church from 7 May 1342 to his death, in December 1352. He was the fourth Avignon pope. Clement reigned during the first visitation of the Black Death (1348–1350), during which he granted remission of sins to all who died of the plague.