mythologisation vs mythologization

mythologisation and mythologization both are nouns.

Word	Noun	Adjective	Verb	Adverb
mythologisation	Yes	No	No	No
mythologization	Yes	No	No	No

As nouns, mythologisation and mythologization are synonyms defined as:

mythologisation and mythologization: the restatement of a message as a myth

mythologisation (noun)	mythologization (noun)
the restatement of a message as a myth	the restatement of a message as a myth