<Tr> <Th> Related fields </Th> </Tr> <Tr> <Td> <Ul> <Li> Applied linguistics </Li> <Li> Historical linguistics </Li> <Li> Linguistic anthropology </Li> <Li> Sociocultural linguistics </Li> <Li> Sociology of language </Li> </Ul> </Td> </Tr> <Ul> <Li> Applied linguistics </Li> <Li> Historical linguistics </Li> <Li> Linguistic anthropology </Li> <Li> Sociocultural linguistics </Li> <Li> Sociology of language </Li> </Ul> <Li> Sociology of language </Li>

How the different registers of language have been introduced