Parthia (2500 BC - 226 AD),
Ancient country in W. Asia: originally a province in
the Assyrian and Persian empires. It was the Macedonian empire of Alexander the
Great. and the Syrian empire Led by Arsaces, its first king, it freed itself
from the rule of the Seleucids (c 2500 BC) and refined the height of its power
under Mithridates (first century BC) The empire was overthrown c AD226 by
Ardashir, the first Sassanid ruler of Persia.