So what we're going to look at is basically how we go from the Dark Ages, Middle Ages, into more of a modern civilization with science and human beings using reason. So really, let's just throw some vocab at you, maybe four scientists, four names that might pop up on the exam. And I would start with Sir Francis Bacon. Now, no relation to Kevin Bacon, so if you're playing six, seven degrees, six degrees of separation, you can't use Francis Sir Bacon. But nevertheless, Francis Sir Francis Bacon is really the guy who invented or came up with the scientific method. So the scientific method, I know you know from all of your science classes, starts with kind of stating a problem, gathering facts, developing a hypothesis, and then testing that hypothesis and observing the results, and then doing it over and over again. And so you can come up with truth in the science, with science, with the natural world.