cre·a·tion·ism
"the belief that the universe and living organisms originate from specific acts of divine creation, as in the biblical account, rather than by natural processes such as evolution."
https://www.google.com/?gws_rd=ssl#q=creationism+definition
"the doctrine that matter and all things were
created, substantially as they now exist, by an omnipotent Creator, and not gradually evolved or developed."
http://dictionary.reference.com/browse/creationism
"a doctrine or theory holding that matter, the various forms of life, and the world were
created by God out of nothing and usually in the way described in Genesis "
http://www.merriam-webster.com/dictionary/creationism
"The belief that the
universe and living
organisms originate from
specific acts of
divine creation, as in the
biblical account, rather than by natural processes such as
evolution."
http://www.oxforddictionaries.com/us/definition/american_english/creationism
I can find more if you want. Evolution is not a form of creationism.
Based on what evidence?
Are you a deist? If not, do you believe that God does not allow evolution to take its course and has to step in to make things go in a different direction contrary to natural processes?