The Hellenistic period, spanning from Alexander the Great's death in 323 BCE to Rome's conquest of Egypt in 30 BCE, saw Greek culture spread across a vast territory. This era marked a shift from city-states to larger kingdoms, with increased cultural exchange between Greece and the East. Hellenistic art, philosophy, and science flourished during this time. New philosophical schools emerged, while advancements in mathematics, astronomy, and medicine pushed the boundaries of knowledge. The period's legacy deeply influenced Roman culture and laid foundations for future scientific and artistic developments.