Paved roads.
Hagia Sophia
The decline of the Assyrian Empire allowed Babylon to establish an empire in its place.
No women were allowed to "vote" in the Roman Empire
Alexander the Great was able to maintain his empire by spreading Greek language and culture. He understood that the best way to stabilize his vast empire was to maintain a certain level of homogenization.
One of the things often mentioned is the construction of high quality roads all across the Empire.
Paved roads.
The greatest achievement of the Inca empire was the building of Macchu Picchu.
Hagia Sophia
The interesting achievement of the Muslim Empire led to the preservation of various prehistorical sites and led to discovery of some medicine.
maintaining their large empire
The decline of the Assyrian Empire allowed Babylon to establish an empire in its place.
Irrigation was significant for the Incan Empire because it allowed them to increase agricultural productivity, support larger populations, and cultivate crops in the high-altitude terrains of the Andes. This enabled the Inca to develop a sophisticated agricultural system and sustain their empire's growth and prosperity.
It was the first real empire ever established. Hope that helped.
No women were allowed to "vote" in the Roman Empire
Creating the world's first empire
gggg