19th century thinkers

19th-century thinkers include philosophers like Karl Marx, who analyzed economic systems and class struggles; Charles Darwin, who proposed the theory of evolution by natural selection; and Friedrich Nietzsche, who explored ideas about morality and individualism. This era also featured scientists advancing technology, writers shaping cultural debates, and social theorists questioning traditional authorities. Their work often challenged existing beliefs and laid the foundation for modern ideas in politics, science, and philosophy, reflecting a time of rapid change, scientific discovery, and new ways of understanding human nature and society.