Philology concerns itself with both form and meaning of linguistic expression and combines both linguistics and literary studies. . The invention of recording equipments proved to be a boon for the nascent science of sociolinguistics enabling researchers for the first time to record and consider speech directly rather than inferring it indirectly from written documents.
This enabled them to focus not only on linguistic variations across regions and time but also study those variations in the context of such variables as age, gender and class. The terms sociolinguistics and linguistics are used interchangeably in this. However a widely held belief is that sociolinguistics and linguistics differ from each other. Linguistics usually takes care of the structure of a language while excluding social factors which govern its usage, dissipation or death in a society. Thus linguistics works out the rules of a language while sociolinguistics studies the interaction of these rules with society (Hudson, 2007).
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