They had been a subsidiary of the Medes until Cyrus took them over and used the merged power to move on to take over the Babylonian Empire and beyond.
The first people the Persians conquered in establishing their empire were the Medes, around 550 BCE. Under the leadership of Cyrus the Great, the Persians united with the Medes and then proceeded to conquer other neighboring tribes and kingdoms, including the Lydians and the Babylonians. This marked the foundation of the Achaemenid Empire, which expanded significantly under subsequent rulers.
They absorbed the Medes, their previous rulers.
They were first conquered by the Persians
turkey kyrgystan the middle east and the Arabian peninsula
turkey kyrgystan the Middle East and the Arabian peninsula
Mexico.
The Medes.
First you must define what 'best' is - in what aspects.
The battle of Marathon 490 BCE.
you have to first kill the owners of the land and then hire slaves
They captured one of the ir two targets - Eretria. Then they moved on to Athens but were defeated at Marathon, and went home.
The Roman Empire, if you mean "empire" but if you mean "Emperor" it was Caesar who conquered it and became emperor not long thereafter.