Answer:
A) its central location in Europe
C) its proximity to the Mediterranean Sea
The different factors that contributed to Persia's major success as an influential empire were transportation, coordination, and their tolerance policy. One of the main reasons that the Persian Empire was so successful was because of their tolerance of non-Persian citizens living in Persia.
Volunteer soldiers. In America, there are no enlisted men, only citizens willing to give up their lives for their country. But during a serious war, there can be soldiers being deployed against their will so that there are more soldiers to help during the war.
Awnser: Humans had been around for tens of thousands of years by the year 1 A.D. when the Earth's population was an estimated 200 million.
