existent vs historical

existent and historical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
existent	No	Yes	No	No
historical	No	Yes	No	No

existent (adjective)	historical (adjective)
having existence or being or actuality	used of the study of a phenomenon (especially language) as it changes through time
being or occurring in fact or actuality; having verified existence; not illusory	of or relating to the study of history
presently existing in fact and not merely potential or possible	belonging to the past; of what is important or famous in the past
	having once lived or existed or taken place in the real world as distinct from being legendary