Female figures in this legendary ancestry include the nymph Taygete (mother of Lacedaemon), Sparta (the daughter of Eurotas) and Eurydice of Argos (grandmother of Perseus).
The last Atreidae Tisamenus and Penthilus, according to myth, would lead the Achaeans to Achaea and Asia minor, whereas the Heraclids Eurysthenes and Procles founded the Spartan kingly families of the Agiad and Eurypontid dynasties respectively.
Indeed, the Spartans ascribed their subsequent success to Lycurgus, who instituted his reforms at a time when Sparta was weakened by internal dissent and lacked the stability of a united and well-organized community.
[29] The Battle of the Champions won about 546 BC (that is at the time that the Lydian Empire fell before Cyrus of Persia) made the Spartans masters of the Cynuria, the borderland between Laconia and Argolis.
[34] After hearing a plea for help from Athens who were facing the Persians at Marathon in 490 BC, Sparta decided to honor its laws and wait until the moon was full to send an army.
[37] In 480 BC, a small force of Spartans, Thespians, and Thebans led by King Leonidas (approximately 300 were full Spartiates, 700 were Thespians, and 400 were Thebans; these numbers do not reflect casualties incurred prior to the final battle), made a legendary last stand at the Battle of Thermopylae against the massive Persian army, inflicting very high casualties on the Persian forces before finally being encircled.
By the end of the 5th century BC, it stood out as a state which had defeated the Athenian Empire and had invaded the Persian provinces in Anatolia, a period which marks the Spartan Hegemony.
[57] When the Peloponnesian War, finally broke out in 431 BC the chief public complaint against Athens was its alliance with Corinth's enemy Korkyra and Athenenian treatment of Potidea.
They invested a large portion of the state resources in a military expedition, but recalled one of its commanders, Alcibiades, on a trumped-up charge of impiety (some religious statues had been mutilated) for which he faced the death penalty.
He induced Sparta to send Gylippus to conduct the defence of Syracuse, to fortify Decelea in northern Attica, and to adopt a vigorous policy of aiding Athenian allies to revolt.
Gylippus collected an international army of pro-Spartan elements from many parts of the eastern Mediterranean on the platform of liberation of Greece from the tyranny of Athens.
They were about to depart for Athens when an eclipse of the full moon moved the soothsayers to insist they remain for another nine days, just the time needed for the Syracusians to prepare a fleet to block the mouth of the harbor.
In his place Sparta sent an agent of similar capabilities, a friend of King Agis, Lysander, who as "a diplomat and organizer ... was almost flawless, unless we count arrogance, dishonesty, unscrupulousness and brutality as flaws.
After the Ten had been fully heard, Pausanias, obtaining the assent of three out of five ephors, went himself to Athens with a force including men from all the allies except the suspect Boeotia and Corinth.
[76] At the Battle of Coronea, Agesilaus I, the new king of Sparta, had slightly the better of the Boeotians and at Corinth, the Spartans maintained their position, yet they felt it necessary to rid themselves of Persian hostility and if possible use Persian power to strengthen their own position at home: they therefore concluded with Artaxerxes II the humiliating Peace of Antalcidas in 387 BC, by which they surrendered to the Great King of Persia the Greek cities of the Asia Minor coast and of Cyprus, and stipulated for the autonomy of all other Greek cities.
[79] Sparta achieved a series of land victories, but many of her ships were destroyed at the battle of Cnidus by a Greek-Phoenician mercenary fleet that Persia had provided to Athens.
[80] After a few more years of fighting in 387 BC, the Peace of Antalcidas was established, according to which all Greek cities of Ionia would return to Persian control, and Persia's Asian border would be free of the Spartan threat.
While some researchers view it as a result of war casualties, it appears that the number of citizens, after a certain point, started declining steadily at a rate of 50% reduction every fifty years regardless of the extent of battles.
[91] Sparta had neither the men nor the money to recover her lost position, and the continued existence on her borders of an independent Messenia and Arcadia kept her in constant fear for her own safety.
She did, indeed, join with Athens and Achaea in 353 BC to prevent Philip II of Macedon passing Thermopylae and entering Phocis, but beyond this, she took no part in the struggle of Greece with the new power which had sprung up on her northern borders.
[98] The memory of this defeat was still fresh in Spartan minds when the general revolt against Macedonian rule known as the Lamian War broke out – hence Sparta stayed neutral.
[citation needed] During Demetrius Poliorcetes’ campaign to conquer the Peloponnese in 294 BC, the Spartans led by Archidamus IV attempted to resist but were defeated in two battles.
[111] In 264 BC, Sparta formed an alliance with Athens and Ptolomeic Egypt (along with a number smaller Greek cities) in an attempt to break free of Macedon.
[129] The Encyclopædia Britannica states: Nabis...if we may trust the accounts given by Polybius and Livy, was little better than a bandit chieftain, holding Sparta by means of extreme cruelty and oppression, and using mercenary troops to a large extent in his wars.
Forest is willing to take these accusations at face value including that he murdered his ward, and participated in state sponsored piracy and brigandage – but not the self-interested motives ascribed to him.
[133] Nabis was forced to capitulate, evacuating all his possessions outside Laconia, surrendering the Laconian seaports and his navy, and paying an indemnity of 500 talents, while freed slaves were returned to their former masters.
In 192 BC, seeing that the Romans and their Achaean allies were distracted by the imminent war with King Antiochus III of Syria and the Aetolian League, Nabis attempted to recapture the harbor city of Gythium and the Laconian coastline.
[141] Pliny describes its freedom as being empty, though Chrimes argues that while this may be true in the area of external relations, Sparta retained a high level of autonomy in internal matters.
In his De administrando imperio, Emperor Constantine Porphyrogennetos also claims that the Maniots retained autonomy during the Slavic invasion, and that they descend from the ancient Greeks.
Until modern times, the site of ancient Sparta was occupied by a small town of a few thousand people who lived amongst the ruins, in the shadow of Mystras, a more important medieval Greek settlement nearby.