Absrtact: The paper considers taxis as an independent and special category of the language and depicts its diachronic research background. Besides, the classic and contemporary definitions of category in linguistic and philosophical science are partially presented in contrastive mode. The precise categorical reference of taxis to some grammatical phenomenon has been also touched upon. The initial researches and various attitudes on taxis category in contemporary linguistics have been discussed and analyzed in the paper. Different standpoints of linguists on taxis theory have been critically treated.