Answer:
Aristotle became known to the world, and especially to the Western world, together with Plato, as the Father of Western Philosophy. Born in northern Greece, around 384 BC, this man became really important not just to the West, but also to Hellenism, due to not just his teachings, which he inherited and expanded on, from Plato, but also because he initiated the Lyceum, and the Peripatetic School.
The Lyceum, which was a school founded by Aristotle after Athens became governed by the Macedonians, became a center of philosophical teaching that shaped many of the great minds that later on went to also influence the wider world.
Aristotle was also responsible for initiating the Peripatetic School, a system in which students were able to dedicate their lifes to philosophical and scientific enquiries. This school almost disappeared until Rome came into play, and Aristotle´s teachings and methods were retaken.
Through his writings, Aristotle also influenced almost all subjects that had ever been studied by Hellenists. Thus, he wrote about Biology, linguistics, economy, politics, psychology, metaphysics, logic, and many other subjects. In this way, Aristotelian views also influenced the Hellenist world.
Finally, Aristotle was responsible for giving Platonic philosophy a turn, and thus created immanent realism, a way of seeing life that denied Platonic views on Universal concepts. He also started a greater interest in the natural sciences, on observation of natural and real things in this world, rather than thinking about concepts outside, or beyond it. In this way, and thanks to Aristotle, Physical Sciences appeared on the map not just in Ancient Greece, but later on, during the Middle Ages.
