<Ul> <Li> Council of Elvira (c. 305) </Li> </Ul> <Li> Council of Elvira (c. 305) </Li> <Dl> <Dd> (Canon 33): It is decided that marriage be altogether prohibited to bishops, priests, and deacons, or to all clerics placed in the ministry, and that they keep away from their wives and not beget children; whoever does this shall be deprived of the honor of the clerical office . </Dd> </Dl> <Dd> (Canon 33): It is decided that marriage be altogether prohibited to bishops, priests, and deacons, or to all clerics placed in the ministry, and that they keep away from their wives and not beget children; whoever does this shall be deprived of the honor of the clerical office . </Dd>

When did the roman catholic church establish the rule of celibacy for the clergy