<Tr> <Td> </Td> <Td> This section contains what may be an unencyclopedic or excessive gallery of images . Galleries containing indiscriminate images of the article subject are discouraged; please improve or remove the section accordingly . (February 2017) (Learn how and when to remove this template message) </Td> </Tr> <Ul> <Li> <P> Council Fathers with their secretaries leaving St. Peter's Basilica </P> </Li> <Li> <P> Bishops leaving St. Peter's </P> </Li> <Li> <P> Second Vatican Council </P> </Li> <Li> <P> Bishops discussing major issues during the Second Vatican Council </P> </Li> <Li> <P> Dispersion of Bishops during the Second Vatican Council </P> </Li> <Li> <P> The opening of the Second Session of Vatican II </P> </Li> </Ul> <Li> <P> Council Fathers with their secretaries leaving St. Peter's Basilica </P> </Li> <P> Council Fathers with their secretaries leaving St. Peter's Basilica </P>

What was the second vatican council and what did it accomplish