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The Persian Empire was important to Western Asia, the Mauryan Empire was important to India.
The Persian Empire was not a Mesopotamian empire - it included Mesopotamia as merely one of it's twenty provinces which stretched from Libya to today's Pakistan..
In an era before electronic communications, news and orders had to be transmitted by boat or foot or mounted messenger. With the Empire spread over several thousand miles from Egypt/Libya to today's Pakistan, it was important to pass messages as quickly as possible so a system of horse posting stations, riverine and seagoing boats speeded up communications, reducing the time of transmission from weeks to days.
The Persian Empire.
The Persian Empire was not a person.
The Persian Empire was important to Western Asia, the Mauryan Empire was important to India.
They were so important because it led to the destruction of the Persian Empire.
Like today it is necessary to impart important information on security and threats as soon as possible. It was just a bit slower then with no telephones, radio, TV or internet, having to rely on water and road transmission by courier over 4,000 km - took weeks to pass a message.
The Persian Empire was not a Mesopotamian empire - it included Mesopotamia as merely one of it's twenty provinces which stretched from Libya to today's Pakistan..
It dominated the Fertile Crescent and its resources.
In an era before electronic communications, news and orders had to be transmitted by boat or foot or mounted messenger. With the Empire spread over several thousand miles from Egypt/Libya to today's Pakistan, it was important to pass messages as quickly as possible so a system of horse posting stations, riverine and seagoing boats speeded up communications, reducing the time of transmission from weeks to days.
The Persian Empire.
The Persian Empire was not a person.
Persian Empire
The Persian Empire absorbed the Babylonian Empire.
Alexander the Great defeated the Persian empire
The Persian Empire absorbed the Baabylonian Empire.