- Conquering a vast empire that stretched from Greece to India.
- Founding numerous cities, including Alexandria in Egypt.
- Spreading Greek culture and learning to the east.
- Patronage of the arts and sciences, including the work of Aristotle.
- Developing new military tactics and strategies.
- Establishing a system of administration that was adopted by later empires.
- Promoting trade and commerce between different regions.
- Creating a lasting legacy that continues to inspire people today.