See the link in separate box below: 'Sources and related links'.
550 BCE.
A map of the Persian Empire is in the link in the separate panel Sources and related links below.
Amu Darya.
The Persian Empire.
The Persian Empire was not a person.
The Persian Empire, primarily located in the region of modern-day Iran, extended at its height from the northeastern parts of the Mediterranean to parts of Central Asia and the Indian subcontinent. On a map, it can be roughly identified in the area covering coordinates 25°N to 40°N latitude and 44°E to 60°E longitude. This expansive territory included significant regions such as Mesopotamia, parts of the Caucasus, and western Iran.
Persian Empire
Google: Persian War map.
The Persian Empire absorbed the Babylonian Empire.
Alexander the Great defeated the Persian empire
The Persian Empire absorbed the Baabylonian Empire.
Alexander conquered the Persian Empire.