<Tr> <Td> Liturgical calendar (show) <Ul> <Li> Paschal cycle </Li> <Li> 12 Great Feasts </Li> <Li> Other feasts: </Li> </Ul> <Ul> <Li> Feast of Orthodoxy </Li> <Li> Intercession of the Theotokos </Li> </Ul> <Ul> <Li> The four fasting periods: </Li> </Ul> <Ul> <Li> Nativity Fast </Li> <Li> Great Lent </Li> <Li> Apostles' Fast </Li> <Li> Dormition Fast </Li> </Ul> </Td> </Tr> <Ul> <Li> Paschal cycle </Li> <Li> 12 Great Feasts </Li> <Li> Other feasts: </Li> </Ul> <Li> 12 Great Feasts </Li> <Li> Other feasts: </Li>

What is the difference between catholicism and orthodox