They did that because they feared being a minority in a country dominated by Catholics.
Primary sources help us learn about people in the past because you are learning about events that occurred from people that were there to actually witness it. You get first-hand information passed to you whether it's via your grandparents, a journal, or a letter. From primary sources you can also learn about the ways people lives were. You are informed about their culture, religion, foods, and clothing. Differing from secondary sources, you are not reading or listening to information about the past, or even present, that is biased and has edited or opinionated information included.
The Enlightenment created a new idea where God or godly entities did not dictate the functionality of the world, but rather science and reason.
Well the 6th amendment says that people have the right to a fair and speedy trial by jury.... hope this helps :D
