How did the enlightenment change europe?

The age of reason, as it was called, was spreading rapidly across Europe. In the late 17th century, scientists like isaac newton and writers like john locke were challenging the old order. Newton's laws of gravity and motion described the world in terms of natural laws beyond any spiritual force. In the wake of political turmoil in England, Locke asserted the right of a people to change a government that did not protect natural rights of life, liberty and property. People were beginning to doubt the existence of a God who could predestine human beings to eternal misery and empower a tyrant for a king. Europe would be forever changed by these ideas.

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.