Ten.
11
He spent tow years re-establishing control of Greece, then 10 years taking over the Persian Empire.
Alexander's campaign to take the Persian Empire lasted a decade - 334-324 BCE.
Alexander's campaign to take the Persian Empire lasted a decade - 334-324 BCE.
The war was Alexander's invasion of the Persian Empire, lasting 10 years in which time he won many battles.
Greece fell to Rome approximately 350 years after Alexander the Great was born. Alexander was born in 356 BCE, and Greece became part of the Roman Empire in 146 BCE.
History
3,000.
The only Greek Empire was the one created by Alexander the Great. It was not a successful empire, as it did not survive his death.
In the Persian Empire - he fought decisive battles in Asia Minor (Granicus), Syria (Issus), Mesopotamia (Gaugamela) as well as many others throughout the empire as far as the Indus River in the east, over a period of ten years.
In terms of area and population, the Roman Empire at its height was much larger, but it must be remembered that it took the Romans many generations to build their empire, while Alexander built his in only a few years. Macedonia later became a Roman privince, but several Eastern provinces of the former Macedonian Empire were never added to the Roman Empire.
For how many years constantinople the capital of a united roman empire ?