'Empire' in the Bible

The first (the Babylonian Empire under Nebuchadnezzar) was like a lion and had the wings of an eagle. I kept looking until its wings were plucked, and it was lifted up from the ground and made to stand on two feet like a man; a human mind was given to it.

And behold, another beast, a second one (the Medo-Persian Empire), was like a bear, and it was raised up on one side (domain), and three ribs were in its mouth between its teeth; and it was told, ‘Arise, devour much meat.’

After this I kept looking, and behold, another one (the Greek Empire of Alexander the Great), like a leopard, which had on its back four wings like those of a bird; the beast also had four heads (Alexander’s generals, his successors), and power to rule was given to it.

After this I kept looking in the night visions, and behold, [I saw] a fourth beast (the Roman Empire), terrible and extremely strong; and it had huge iron teeth. It devoured and crushed and trampled down what was left with its feet. It was different from all the beasts that came before it, and it had ten horns (ten kings).