Of course secular enterprises like science were developed by theists. Who else was there to break free from the church if virtually everybody was a believer under its influence?"The Church and Science." We have all heard a great deal about the Church's alleged hostility toward science. What most people fail to realize is that historians of science have spent the past half-century drastically revising this conventional wisdom, arguing that the Church's role in the development of Western science was far more salutary than previously thought.
It is all very well to point out that important scientists, like Louis Pasteur, have been Catholic. More revealing is how many priests have distinguished themselves in the sciences. It turns out, for instance, that the first person to measure the rate of acceleration of a freely falling body was Fr. Giambattista Riccioli.
And none of this establishes a role for the church in science. If theists were doing good science - even when inventing it - they were functioning as rationalists and empiricists, not fideists.
Faith based systems of thought don't deserve credit for the development of science.