The Achaemenid Empire, also known as the Persian Empire, was one of the largest and most powerful empires in the ancient world. It was founded by Cyrus the Great in 559 BC and reached its peak under Darius the Great in the 5th century BC. Alexander the Great conquered the Achaemenid Empire in a series of campaigns between 334 and 323 BC.
* Egyptian Empire
The Egyptian Empire was one of the oldest and most powerful civilizations in the ancient world. It was founded in the 4th millennium BC and lasted until the 7th century BC. Alexander the Great conquered Egypt in 332 BC and founded the city of Alexandria.
* Seleucid Empire
The Seleucid Empire was one of the largest and most powerful empires in the ancient world. It was founded by Seleucus I Nicator, a general of Alexander the Great, in 312 BC. The Seleucid Empire controlled much of the Middle East and parts of Asia Minor.
* Bactrian Empire
The Bactrian Empire was a Hellenistic state that was founded in 250 BC by Diodotus I. It was located in what is now Afghanistan and parts of Central Asia. The Bactrian Empire was conquered by the Kushan Empire in the 1st century AD.
* Indo-Greek Kingdom
The Indo-Greek Kingdom was a Hellenistic state that was founded in 180 BC by Demetrius I. It was located in what is now Pakistan and India. The Indo-Greek Kingdom was conquered by the Kushan Empire in the 1st century AD.