The Greco-Persian Wars, also called the Persian Wars, were a series of armed conflicts involving various Greek city-states and the Achaemenid Empire from 499 BC to 449 BC. The precipitating collision between the fractious political world of ancient Greece and the enormous empire of ancient Persia had begun when the Persian king Cyrus the Great conquered the Greek-inhabited region of Ionia in 547 BC. As they struggled to exert authority over the independent-minded Ionian cities, the Persians appointed Greek tyrants to rule each of them, though this would prove to be the source of much trouble for the Greeks and the Persians alike.
In 499 BC, the Greek tyrant Aristagoras of Miletus embarked on what would ultimately be a failed expedition to conquer Naxos with Persian support. Anticipating his dismissal, Aristagoras incited Greek city-states in Asia Minor to join him in deposing their Persian rulers, sparking the Ionian Revolt. Despite initially lacking support from mainland Greece, Aristagoras secured alliances with Athens and Eretria that helped him capture and raze Sardis in 498 BC. In response to the loss of his regional capital city, the Persian king Darius the Great vowed to exact revenge against the Athenians and the Eretrians. Both sides then effectively stalemated until 495 BC, but in 494 BC, the Persian army consolidated and launched a major assault at the heart of the Ionion Revolt in Miletus; Ionia suffered a decisive defeat in the Battle of Lade, which enabled the collapse of the rebellion over the course of the following year.
Seeking to protect the Achaemenid Empire from being threatened by further uprisings in Asia Minor, Darius embarked on a scheme to conquer the mainland Greeks themselves—both to prevent their political and military interference in Asia Minor and to fulfill his earlier vow to specifically punish Athens and Eretria for their role in the destruction of Sardis. In 492 BC, the first Persian invasion of Greece began under the command of Mardonius, who successfully re-subjugated Thrace and Macedon before several mishaps forced an early end to the rest of the campaign. In 490 BC, another Persian force was sent to Greece—this time across the Aegean Sea—under the command of Datis and Artaphernes, who successfully subjugated the Cyclades before razing Eretria. Before they could reach Athens itself, however, the Persians were defeated by the Athenians and the Plataeans in the Battle of Marathon.
Upon the death of Darius in 486 BC, his son Xerxes I took the throne and the responsibility for continuing the Achaemenid Empire's stalled conquest of Greece. In 480 BC, Xerxes initiated and personally led the second Persian invasion of Greece with one of the largest armies ever assembled in the ancient world. His victory over the Greek alliance in the Battle of Thermopylae allowed the Persian army to raze an evacuated Athens and occupy most of the Greek mainland. Subsequently seeking to destroy the combined Greek fleet, the Persians suffered a severe defeat in the Battle of Salamis. The following year, the confederated Greek forces initiated a joint offensive that decisively routed the Persian army in the Battle of Plataea, which granted independence to Attica and Boeotia.
The Greeks followed up on their success at Plataea by destroying the rest of the Persian fleet in the Battle of Mycale before expelling Persian garrisons from Sestos in 479 BC and from Byzantium in 478 BC. These consecutive losses would force Persian troops to eventually withdraw from Europe, allowing Macedonia and the Ionian city-states to again assert their independence. Tensions between Sparta and other Greek city-states, especially amidst the suspicion that the Spartan general Pausanias had conspired with Xerxes as well as due to Sparta's lack of interest in aiding the Greeks of Asia Minor, prompted the anti-Persian alliance to fall to Athenian hegemony under the Delian League. For the next three decades, the Wars of the Delian League focused on removing the Persian army from Greek territory in both Asia Minor and Cyprus. In 466 BC, the League achieved a double victory in the Battle of the Eurymedon, which completely liberated Ionia. By 460 BC, the Athenians led the League to militarily intervene in support of the Egyptian pharaoh Inaros II, who was rebelling against Artaxerxes I. Although the Greek–Egyptian alliance saw initial tactical success, the Persian army was able to secure a strategic advantage from Memphis and inflicted a disastrous defeat on the League, which was forced to suspend any further campaigns against the Achaemenid Empire, while Inaros was captured and executed by crucifixion in Susa. A Greek fleet was sent to Cyprus in 451 BC, but achieved little, drawing the Greco-Persian Wars to a quiet end shortly thereafter. Some contemporary and later Greek and Roman sources suggest that the conflict was formally resolved when Athens and the Achaemenid Empire signed the purported Peace of Callias.
Sources
All the surviving primary sources for the Greco-Persian Wars are Greek; no contemporary accounts survive in other languages. By far the most important source is the fifth-century Greek historian Herodotus. Herodotus, who has been called the "Father of History",Cicero, On the Laws, I, 5 was born in 484 BC in Halicarnassus, Asia Minor (then part of the Persian empire). He wrote his 'Enquiries' (Greek Historia, English (The) Histories) around 440–430 BC, trying to trace the origins of the Greco-Persian Wars, which would still have been recent history. Herodotus's approach was novel and, at least in Western society, he invented 'history' as a discipline. As historian Tom Holland has it, "For the first time, a chronicler set himself to trace the origins of a conflict not to a past so remote so as to be utterly fabulous, nor to the whims and wishes of some god, nor to a people's claim to manifest destiny, but rather explanations he could verify personally."
Some later ancient historians, starting with Thucydides, criticized Herodotus and his methods.Thucydides, History of the Peloponnesian War, e.g. I, 22 Nevertheless, Thucydides chose to begin his history where Herodotus left off (at the siege of Sestos) and felt Herodotus's history was accurate enough not to need re-writing or correcting. Plutarch criticised Herodotus in his essay "On The Malignity of Herodotus", describing Herodotus as "Philobarbaros" (barbarian-lover) for not being pro-Greek enough, which suggests that Herodotus might actually have done a reasonable job of being even-handed. A negative view of Herodotus was passed on to Renaissance Europe, though he remained widely read. However, since the 19th century, his reputation has been dramatically rehabilitated by archaeological finds that have repeatedly confirmed his version of events. The prevailing modern view is that Herodotus did a remarkable job in his Historia, but that some of his specific details (particularly troop numbers and dates) should be viewed with skepticism. Nevertheless, there are still some historians who believe Herodotus made up much of his story.
The military history of Greece between the end of the second Persian invasion of Greece and the Peloponnesian War (479–431 BC) is not well supported by surviving ancient sources. This period, sometimes referred to as the pentekontaetia (πεντηκονταετία, the Fifty Years) by ancient writers, was a period of relative peace and prosperity within Greece. The richest source for the period, and also the most contemporaneous, is Thucydides' History of the Peloponnesian War, which is generally considered by modern historians to be a reliable primary account. Thucydides only mentions this period in a digression on the growth of Athenian power in the run up to the Peloponnesian War, and the account is brief, probably selective and lacks any dates. Nevertheless, Thucydides's account can be, and is, used by historians to draw up a skeleton chronology for the period, on to which details from archaeological records and other writers can be superimposed.
More detail for the whole period is provided by Plutarch, in his biographies of Themistocles, Aristides and especially Cimon. Plutarch was writing some 600 years after the events in question, and is therefore a secondary source, but he often names his sources, which allows some degree of verification of his statements.e.g. Themistocles chapter 25 has a direct reference to Thucydides I, 137 In his biographies, he draws directly from multiple ancient histories that have not survived, and thus often preserves details of the period that are omitted in Herodotus and Thucydides's accounts. The final major existing source for the period is the universal history (Bibliotheca historica) of the 1st century BC Sicilian, Diodorus Siculus. Much of Diodorus's writing about this period is drawn from the much earlier Greek historian Ephorus, who also wrote a universal history. Diodorus is also a secondary source and often derided by modern historians for his style and inaccuracies, but he preserves multiple details of the ancient period found nowhere else.
Further scattered details can be found in Pausanias's Description of Greece, while the Byzantine Suda dictionary of the 10th century AD preserves some anecdotes found nowhere else. Minor sources for the period include the works of Pompeius Trogus (epitomized by Justinus), Cornelius Nepos and Ctesias of Cnidus (epitomized by Photius), which are not in their original textual form. These works are not considered reliable (especially Ctesias), and are not particularly useful for reconstructing the history of this period.
A few physical remnants of the conflict have been found by archaeologists. The most famous is the Serpent Column in Istanbul, which was originally placed at Delphi to commemorate the Greek victory at Plataea. In 1939, Greek archaeologist Spyridon Marinatos found the remains of numerous Persian arrowheads at the Kolonos Hill on the field of Thermopylae, which is now generally identified as the site of the defender's last stand.
Origins of the conflict The Greeks of the classical period believed that, in the dark age that followed the collapse of the Mycenaean civilization, significant numbers of Greeks fled and had emigrated to Asia Minor and settled there.Herodotus I, 142–151Thucydides I, 12 Modern historians generally accept this migration as historic (but separate from the later colonization of the Mediterranean by the Greeks). There are, however, those who believe the Ionian migration cannot be explained as simply as the classical Greeks claimed. These settlers were from three tribal groups: the Aeolians, Dorians and Ionians. The Ionians had settled about the coasts of Lydia and Caria, founding the twelve cities that made up Ionia. These cities were Miletus, Myus and Priene in Caria; Ephesus, Colophon, Lebedos, Teos, Clazomenae, Phocaea and Erythrae in Lydia; and the islands of Samos and Chios.Herodotus I, 142 Although the Ionian cities were independent of one another, they recognized their shared heritage and supposedly had a common temple and meeting place, the Panionion. They thus formed a 'cultural league', to which they would admit no other cities, or even other tribal Ionians.Herodotus I, 143Herodotus I, 148