In all efforts put into understanding LUs and their occurrence, a methodology of categorizing languages according to type was proposed, leading to a new branch of linguistic study known as typology in LUs.

Typology as language classification allows for comparison of formal modes among languages, i.e., the internal attributes of languages and the presence of such attribute would establish its place in the respective category

(Greenberg, 1957)

Typology works in a manner of efficiently sorting out linguistic features that are highly noticeable across languages and picking them to be the head of a type. Following which, grouping languages according to these common features would allow linguists to draw patterns and systematically limit languages accordingly (Greenberg, 1969).

Hence,  three major areas in linguistics (Morphology, Syntax and Phonology) will be explored and within each area, occurrence of either type of typological universals will be used as plausible explanations for the manifestation and mechanisms behind language universals. In turn, these evidences would be used to postulate for the evolution of human languages