This period is called the "Age of Reason" or "Period of Enlightenment". This occured a some historians says between 1685-1815. Major scientific discoveries were made during this period, such as the Law of Motion and Gravity. There are also a huge movement against colonization with the Declaration of Independence signed during this period.
First amendment. The amendment that basically guarantees us the right to you think freely and express ours view from other gives us the ability to reason rather than fear