Answer:
I'm pretty sure it's a, I'm
sorry if I'm wrong
<span>Trade and shipping spreads ideas. Also intermarriage by noble families to cement treaties and commercial interests. Artists would also travel to different "schools" to learn the techniques they offered.</span>
In the past, many people considered that Religious leaders as the embodiment of the truth
So basically, Philosophical ideas that came out from them will always involved in 'a Greater power' which heavily influence the way of thinking from people during that time
hope this helps