The Parthenon of Athens seen from the hill of the Pnyx to the west. Location 23°43'35.69"E 37°58'17.39"N
This century saw the beginning of a period of philosophical brilliance among Western civilizations, particularly the Greeks which would continue all the way through the 4th century until the time of Alexander the Great. AncientGreek philosophy developed during the 5th century BC, setting the foundation for Western ideology. In Athens and elsewhere in the Mediterranean world, the 5th century marked a high point in the development of political institutions, art, architecture, and literature.
The century was also notable for the Persian Wars, fought between the Greek cities, and the vast Persian Empire. Determined to punish Athens for supporting a revolt by conquered Greek cities in Asia Minor, King Darius I sent several armies against them, only to have his plans first thwarted by a storm and later by a defeat at the Battle of Marathon. His son Xerxes attempted to finish the job 10 years later, and succeeded in capturing Athens and burning it to the ground, only to be defeated later on land at Plataea. In the latter part of the century the Greeks became locked in a bitter war among themselves, with the major cities Athens and Sparta competing for absolute domination.
426 BC — When Ambracia invades Acarnania, they seek help from the Spartans and Athenians respectively. The Athenians then defeat the Spartans in the Battle of Olpae.
424 BC — Sicily withdraws from the war and expels every foreign power. Thus, Athens is forced to withdraw from the island.
424 BC — The Athenians try to capture Megara, but are defeated by the Spartans.
424 BC — The Spartan general Brasidas captures Amphipolis, which is a setback for Athens. Thucydides is held responsible for the Athenian failure and is ostracised. This gives him time to start writing his history book.
423 BC — The Athenians propose a cease-fire, which the Spartan general Brasidas ignores.
416 BC — The Athenians capture the island of Melos and treat the inhabitants with great cruelty.
416 BC — The Athenians adheres a plea of help from Sicily and starts planning an invasion of the island.
415 BC — The sacred Hermae busts in Athens are mutilated just before the expedition to Sicily is sent away. One of the culprits, Andocides, is captured and is forced to turn informer. He names the other mutilators, among them Alcibiades, who are sentenced to death in their absence.
415 BC — Alcibiades defects from Athens to Sparta after having learned about his death sentence.
414 BC — The Athenians try to make a breakthrough in their siege of Syracuse but are defeated by the Spartans.
413 BC — Demosthenes suggests the Athenians leave Syracuse in order to return to Athens, where help is needed. However, Nicias refuses and they are again defeated in battle by the Spartans. Both Demosthenes and Nicias are killed.
411 BC — The democracy in Athens is overthrown and replaced by the oligarchic Council of Four Hundred. This council is itself soon defeated and order is almost restored, when the Five Thousand start ruling. Early next year, they are also overthrown and the old democracy is restored.
408 BC — The Persian king, Darius II, decides to aid Sparta in the war and makes his son Cyrus a satrap. However, Cyrus starts collecting an army to benefit his own interests, rather than his father's.
408 BC — Alcibiades returns to Athens in triumph after an absence of seven years.
407 BC — The Athenian fleet is routed by the Spartan one in the Battle of Notium, which gives Alcibiades' opponents a reason to strip him of command. He never returns to Athens again.
403 BC — Some exiled Athenians return to fight the Thirty Tyrants and restore democracy in Athens. The are, however, narrowly defeated by the Spartans in the Battle of Piraeus. After this, the Spartan king Pausanias allows democracy to be restored in Athens.
403 BC — Thrasybulus restores the Athenian democracy and grants an almost general amnesty.
400 BC — After Cyrus has been killed, his Greek mercenaries make their way back to Greece, where Sparta is so impressed with their feats in and march through Persia that they declare war on the Persians.
The Chinese philosopher Li Kui writes the Book of Law (Fajing, 法经) in 407 BC, the basis for the law codes of the following Qin Dynasty and partially that of the Han Dynasty.