Science

The scientific revolution. Weird to think about when you come from the 21st century. Science and proving things with evidence is so normal, and expected in my time, that thinking about a time when that was not so, kind of makes you step back and realize that changes are constantly occurring. Before this was the normal, it was Religion that was the science. Everything was explained by Religion, and when people started coming out with things that went against the church, it seemed that people started moving toward science for their reasoning. It was things like Copernicus who found that earth was not the center of the universe, as once believed, especially with religion, because it supported the idea of God centering in on Earth and mankind. If I was alive back when that came out, I would have to say that my faith in the church and what I had been learning my whole life would definitely be shaken and I probably would be a confused mess. I guess that's why deism and pantheism came about, because religion is still an important aspect in people's lives, as one can see in these different "regions", but science was kind of an earthquake in what everyone knew religion to be.
And then another thing that stuck out was at the ending of the chapter, when it explained that many ideas and much of our religion now was "borrowing" elements from different ideas and religions into the ones that exist today, like those of North Indian Sikhs.