Poor harvests and slow trade further weakened the empire. In 539 b.c., the Persians recognized that the Chaldeans had lost their strength and leadership. The Persians took advantage and captured Babylon and made Mesopotamia part of their empire. considered one of the Seven Wonders of the Ancient World.
It’s has always been the neolithic civilization
The Aztec Empire
The Aztecs demanded regular tributes of their conquered subjects, and often these tributes took the form of human sacrificial offerings.