<Table> <Tr> <Th_colspan="2"> First Council of Nicaea </Th> </Tr> <Tr> <Td_colspan="2"> 16th - century fresco depicting the Council of Nicaea </Td> </Tr> <Tr> <Th> Date </Th> <Td> 20 May to 19 June, AD 325 </Td> </Tr> <Tr> <Th> Accepted by </Th> <Td> <Ul> <Li> Roman Catholicism </Li> <Li> Eastern Orthodox Church </Li> <Li> Oriental Orthodoxy </Li> <Li> Assyrian Church of the East </Li> </Ul> </Td> </Tr> <Tr> <Th> Next council </Th> <Td> First Council of Constantinople </Td> </Tr> <Tr> <Th> Convoked by </Th> <Td> Emperor Constantine I </Td> </Tr> <Tr> <Th> President </Th> <Td> Hosius of Corduba (and Emperor Constantine) </Td> </Tr> <Tr> <Th> Attendance </Th> <Td> 318 (traditional number) 250--318 (estimates)--only five from Western Church </Td> </Tr> <Tr> <Th> Topics </Th> <Td> Arianism, the nature of Christ, celebration of Passover (Easter), ordination of eunuchs, prohibition of kneeling on Sundays and from Easter to Pentecost, validity of baptism by heretics, lapsed Christians, sundry other matters . </Td> </Tr> <Tr> <Th> Documents and statements </Th> <Td> Original Nicene Creed, 20 canons, and a synodal epistle </Td> </Tr> <Tr> <Td_colspan="2"> Chronological list of Ecumenical councils </Td> </Tr> </Table> <Tr> <Th_colspan="2"> First Council of Nicaea </Th> </Tr>

When was the first council of nicaea held
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