I believe the answer is: scientific stage
In the scientific stage of societal develoment, people start to rely more on empirical evidence to drive their decision rather than religion or any forms of diety. In this stage of development, innovations would start to flourish and society tend to keep inventing things that increase their prosperity.
According to Auguste Comte, the type of thinking favored by people such as Thomas Edison, the inventor of the light bulb, becomes common the scientific stage of societal development.