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  It offered a rational explanation of the reality of nature. Important philosophers: Thales, Parmenides and Democritus.
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  Philosophy shifted focus from the natural world to human beings and their life in society. Important philosophers: Sophists, Plato, Aristotle.
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  Philosophy was divided into two tendencies: moral philosophy and the investigation of the natural world. Important philosophers: Epicurus, Zeno, Archimedes.
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  The synthesis between philosophy and Christianity
 Important philosophers: Plotinus, Porphyry and Augustine of Hippo.
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  At the beggings, there was a cultural standstill. After the 9th century, the situation changed and culture begging to thrive and a method of thought named scholasticism emerged.
 The main philosopher is Saint Thomas Aquinas.
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  The authors of Greco-Roman were explored and studied. Modern science was developed in the scientific revolution( Galileo, Kepler, Newton)
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  During this period, two important branches of philosophy emerged: Rationalism( Descartes, Spinoza) and Empiricism (Locke and Hume)
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  During this period, philosophy believed that society must be improved by education and free thought ( Rousseau, Voltaire, Kant)
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  This period is characterised by having diverse philosophical trends. Attempts to offer a complete explanation of reality were abandoned, and attention was focused on particular aspects of reality.
 Important philosophers: (Hegel, Marx, Russel, Gasset and Habermas)
