11. Montesquieu 1700s
Argued that all
governments
should have
separation of
powers
• Legislative
• Executive
• Judicial
12. Voltaire 1700s
Enlightenment thinker with
the ideas:
• Church and state should
be separate.
• People have the right to
freedom of speech and
religion.
13.
14. Louis Pasteur 1800s
Germ theory
Pasteurization of
milk