Persia, conventional European
designation of the country now known as Iran. This name was in general use in
the West until 1935, although the Iranians themselves had long called their
country Iran. For convention's sake the name of Persia is here kept for that
part of the country's history concerned with the ancient Persian Empire until
the Arab conquest in the 7th century ad.
For later history, as well as other information on the modern country, see
Iran.
The Iranian plateau was settled about 1500
bc by Aryan tribes, the most
important of which were the Medes, who occupied the northwestern portion, and
the Persians, who emigrated from Parsua, a land west of Lake Urmia, into the
southern region of the plateau, which they named Parsamash or Parsumash. The
first prominent leader of the Persians was the warrior chief Hakhamanish, or
Achaemenes, who lived about 681 bc.
The Persians were dominated by the Medes until the accession to the Persian
throne in 550 bc of Cyrus the
Great. He overthrew the Median rulers, conquered the kingdom of Lydia in about
546 bc and that of Babylonia in
539 bc and established the Persian
Empire as the preeminent power of the world. His son and successor, Cambyses II,
extended the Persian realm even further by conquering the Egyptians in 525
bc. Darius I, who ascended the
throne in 522 bc, pushed the
Persian borders as far eastward as the Indus River, had a canal constructed from
the Nile to the Red Sea, and reorganized the entire empire, earning the title
Darius the Great. From 499 to 494 bc
he engaged in crushing a revolt of the Ionian Greeks living under Persian rule
in Asia, and then launched a punitive campaign against the European Greeks for
supporting the rebels. His forces were disastrously defeated by the Greeks at
the historic Battle of Marathon in 490 bc.
Darius died while preparing a new expedition against the Greeks; his son and
successor, Xerxes I, attempted to fulfill his plan but met defeat in the great
sea engagement the Battle of Salamís in 480
bc and in two successive land
battles in the following year.
The forays of Xerxes were the last notable attempt at
expansion of the Persian Empire. During the reign of Artaxerxes I, the second
son of Xerxes, the Egyptians revolted, aided by the Greeks; although the revolt
was finally suppressed in 446 bc,
it signaled the first major assault against, and the beginning of the decline
of, the Persian Empire.
Many revolts took place in the next century; the
final blow was struck by Alexander the Great, who added the Persian Empire to
his own Mediterranean realm by defeating the troops of Darius III in a series of
battles between 334 and 331 bc.
Alexander effected a temporary integration of the Persians into his empire by
enlisting large numbers of Persian soldiers in his armies and by causing all his
high officers, who were Macedonians, to wed Persian wives. His death in 323
bc was followed by a long struggle
among his generals for the Persian throne. The victor in this contest was
Seleucus I, who, after conquering the rich kingdom of Babylon in 312
bc, annexed thereto all the former
Persian realm as far east as the Indus River, as well as Syria and Asia Minor,
and founded the Seleucid dynasty. For more than five centuries thereafter,
Persia remained a subordinate unit within this great realm, which, after the
overthrow of the Seleucids in the 2nd century
bc, became the Parthian Empire.
In ad 224 Ardashir I,
a Persian vassal-king, rebelled against the Parthians, defeated them in the
Battle of Hormuz, and founded a new Persian dynasty, that of the Sassanids. He
then conquered several minor neighboring kingdoms, invaded India, levying heavy
tribute from the rulers of the Punjab, and conquered Armenia. A particularly
significant accomplishment of his reign was the establishment of Zoroastrianism
as the official religion of Persia. Ardashir was succeeded in 241 by his son
Shapur I, who waged two successive wars against the Roman Empire, conquering
territories in Mesopotamia and Syria and a large area in Asia Minor. Between 260
and 263 he lost his conquests to Odenathus, ruler of Palmyra, and ally of Rome.
War with Rome was renewed by Narses; his army was almost annihilated by Roman
forces in 297, and he was compelled to conclude peace terms whereby the western
boundary of Persia was moved from the Euphrates River to the Tigris River and
much additional territory was lost. Shapur II (ruled 309-379) regained the lost
territories, however, in three successive wars with the Romans.
The next ruler of note was Yazdegerd I, who reigned
in peace from 399 to 420; he at first allowed the Persian Christians freedom of
worship and may even have contemplated becoming a Christian himself, but he
later returned to the Zoroastrianism of his forebears and launched a 4-year
campaign of ruthless persecution against the Christians. The persecution was
continued by his son and successor, Bahram V, who declared war on Rome in 420.
The Romans defeated Bahram in 422; by the terms of the peace treaty the Romans
promised toleration for the Zoroastrians within their realm in return for
similar treatment of Christians in Persia. Two years later, at the Council of
Dad-Ishu, the Eastern church declared its independence of the Western church.
Near the end of the 5th century a new enemy, the
barbaric Ephthalites, or “White Huns,” attacked Persia; they defeated the
Persian king Firuz II in 483 and for some years thereafter exacted heavy
tribute. In the same year Nestorianism was made the official faith of the
Persian Christians. Kavadh I favored the communistic teachings of Mazdak
(flourished 5th century), a Zoroastrian high priest, and in 498 was deposed by
his orthodox brother Zamasp. With the aid of the Ephthalites, Kavadh was
restored to the throne in 501. He fought two inconclusive wars against Rome, and
in 523 he withdrew his support of Mazdak and caused a great massacre of Mazdak's
followers. His son and successor, Khosrau I, in two wars with the Byzantine
emperor Justinian I, extended his sway to the Black Sea and the Caucasus,
becoming the most powerful of all Sassanid kings. He reformed the administration
of the empire and restored Zoroastrianism as the state religion. His grandson
Khosrau II reigned from 590 to 628; in 602 he began a long war against the
Byzantine Empire and by 619 had conquered almost all southwestern Asia Minor and
Egypt. Further expansion was prevented by the Byzantine emperor Heraclius, who
between 622 and 627 drove the Persians back within their original borders. The
last of the Sassanid kings was Yazdegerd III, during whose reign (632-651) the
Arabs invaded Persia, destroyed all resistance, gradually replaced
Zoroastrianism with Islam, and incorporated Persia into the caliphate.