This map, published by Simeon Netchev According to World History Encyclopedia, it represents the extent of the Sassanid Empire in the year 620, under the rule of Emperor Khosrow II.
The Sassanid Empire was established in 224 and remained one of the great powers of antiquity until the mid-7th century, when it was taken over by the Muslim conquest of the Middle East. It is considered the second great Persian empire of antiquity, the first being the Achaemenid Empire.
In the illustration, the author uses different colours to show the expansion of the Sassanid Empire:
- In brown The territory is shown at the time of Emperor Kavad I's death in 531.
- In orange, the territory conquered by Emperor Khosrow I between 531 and 579.
- In yellow, the territory conquered by Emperor Khosrow II between 591 and 628.
- In grated orange, the territory of the Byzantine Empire occupied by the Sassanid Empire in the year 620.
The map also shows the entire territory occupied by the Byzantine Empire, in purple, the main power that the Sassanid Empire faced during this period of expansion.


