Cyracuz wrote:But now that you mention it, did the notion of free will exist before christianity started using it as an advertisment to the religion?
Although the technical answer to your question is 'No' because the religion that is currently known as Christianity actually began with God's revelation of Himself to Adam (Christianity is nothing more than the continuation of God's relationship with man from Adam to the present time) ----------
-------it might give some perspective to note that for thousands of years, societies have all been built on the presupposition that man has free will , and thus is responsible for his own actions.
So yes, the notion of free will existed long before the period of time now known as the 'Christian era' (AD or CE) began.