Any militarily powerful state within this nation was called a State of 10,000 Chariots.
Egypt
China
Persia
India
Mesopotamia
Chariots were an important weapon of war in ancient China, so powerful states were said to have 10,000 chariots. The chariot was gradually phased out in favor of mounted cavalry and infantry with improved weapons during the Period of the Warring States, 480 BCE ? 221 BCE.