Which was the most important lasting impact of Alexander conquest

One of the most important lasting impacts of Alexander's conquest was the spread of Hellenistic culture throughout the regions he conquered. By integrating Greek traditions, language, and customs into the conquered territories, Alexander laid the foundation for the Hellenistic period, which saw the blending of Greek, Persian, Egyptian, and other cultures. This cultural fusion had a significant and lasting impact on art, architecture, literature, philosophy, and science in the Eastern Mediterranean and beyond. The Hellenistic influence can still be seen in various aspects of modern Western civilization.