Read this and answer the question. If the question is unanswerable, say "unanswerable".

Some findings in the fields of cosmology, evolutionary biology and neuroscience are interpreted by atheists (including Lawrence M. Krauss and Sam Harris) as evidence that God is an imaginary entity only, with no basis in reality. A single, omniscient God who is imagined to have created the universe and is particularly attentive to the lives of humans has been imagined, embellished and promulgated in a trans-generational manner. Richard Dawkins interprets various findings not only as a lack of evidence for the material existence of such a God but extensive evidence to the contrary.

How long has the thought of the existence of God been carried on?
trans-generational