<Tr> <Th> Unratified Amendments </Th> </Tr> <Tr> <Td> <Ul> <Li> Congressional Apportionment </Li> <Li> Titles of Nobility </Li> <Li> Corwin </Li> <Li> Child Labor </Li> <Li> Equal Rights </Li> <Li> D.C. Voting Rights </Li> </Ul> </Td> </Tr> <Ul> <Li> Congressional Apportionment </Li> <Li> Titles of Nobility </Li> <Li> Corwin </Li> <Li> Child Labor </Li> <Li> Equal Rights </Li> <Li> D.C. Voting Rights </Li> </Ul> <Li> Titles of Nobility </Li>

When was the u.s. constitution written when was it ratified by enough states to go into effect