<Ul> <Li> Roman Britain </Li> <Li> Roman Scotland </Li> <Li> Roman Wales </Li> <Li> Protohistoric Ireland, Roman Ireland </Li> <Li> Sub-Roman Britain </Li> </Ul> <Li> Protohistoric Ireland, Roman Ireland </Li> <Tr> <Td> Medieval period (show) <Ul> <Li> Medieval England <Ul> <Li> Early medieval England </Li> <Li> High medieval England </Li> <Li> Late medieval England </Li> </Ul> </Li> <Li> Medieval Scotland <Ul> <Li> Early medieval Scotland </Li> <Li> High medieval Scotland </Li> <Li> Late medieval Scotland </Li> </Ul> </Li> <Li> Medieval Wales <Ul> <Li> Early medieval Wales </Li> <Li> High medieval Wales </Li> <Li> Late medieval Wales </Li> </Ul> </Li> <Li> Medieval Ireland <Ul> <Li> Early medieval Ireland </Li> <Li> High medieval Ireland </Li> <Li> Late medieval Ireland </Li> </Ul> </Li> <Li> Medieval Mann </Li> </Ul> </Td> </Tr> <Ul> <Li> Medieval England <Ul> <Li> Early medieval England </Li> <Li> High medieval England </Li> <Li> Late medieval England </Li> </Ul> </Li> <Li> Medieval Scotland <Ul> <Li> Early medieval Scotland </Li> <Li> High medieval Scotland </Li> <Li> Late medieval Scotland </Li> </Ul> </Li> <Li> Medieval Wales <Ul> <Li> Early medieval Wales </Li> <Li> High medieval Wales </Li> <Li> Late medieval Wales </Li> </Ul> </Li> <Li> Medieval Ireland <Ul> <Li> Early medieval Ireland </Li> <Li> High medieval Ireland </Li> <Li> Late medieval Ireland </Li> </Ul> </Li> <Li> Medieval Mann </Li> </Ul>

Describe the united kingdom's legacy of constitutionalism