Who conquered much of the known world and helped spread greek ideas to everyone?

Alexander the great conquered much of the known world during his reign in the 4th century BCE, extending his empire from Greece through Asia Minor, Egypt, and into parts of Persia and India. His campaigns not only expanded his territory but also facilitated the spread of Greek culture, language, and ideas, a phenomenon known as Hellenization. This diffusion influenced the regions he conquered, blending Greek and local customs and establishing a lasting legacy on subsequent civilizations.