2nd+Period+-+19th+Century+Cultural+and+Intellectual+Thinkers

__**Scientists**__ 2 - Darwin 2 - Lyell, Mach, Mendeleev, Heisenberg 2 - Wallace, Pasteur, Mendel 2 - Roentgen, Rutherford, Planck, Curie, Thompson, Rutherford, Einstein

__**Philosophers, Religious Commentators, and Writers**__ 2 - Comte 2 - Freud 2 - Jung, Tolstoy, Ibsen, Shaw, Hardy 2 - Spencer, Huxley, and Weber 2 - David Friedrich Strauss 2 - Nietzsche