The world in 411 BC — what happened that year

37 events the sources record for this year, grouped by region.

What happened

West Asia (15)

The Spartan Dercylidas goes overland to the Hellespont and brings about the defection of Abydos, and Lampsacus follows two days later (Thucydides, History of the Peloponnesian War 8.62.1)
Strombichides raids Lampsacus, taking slaves and goods, and makes Sestos the center of Hellespont defense (Thucydides, History of the Peloponnesian War 8.62.2)
110 Peloponnesian ships go out from Miletus to Mycale, but 82 Athenian ships withdraw to Samos (Thucydides, History of the Peloponnesian War 8.79.1–2)
Of Clearchus' 40 ships, 10 that escaped a storm reach the Hellespont and bring about Byzantium's defection (Thucydides, History of the Peloponnesian War 8.80.1–3)
At Miletus the sailors demand pay and attack Astyochus, and the Milesians seize Tissaphernes' fort (Thucydides, History of the Peloponnesian War 8.84.1–4)
Tissaphernes has 147 Phoenician ships come as far as Aspendus but never brings them (Thucydides, History of the Peloponnesian War 8.87.3)
Alcibiades goes to Aspendus with 13 ships to keep the Phoenician fleet from joining the Peloponnesians (Thucydides, History of the Peloponnesian War 8.88.1)
Mindarus leaves Miletus with 73 ships for the Hellespont and waits out wind and waves at Icarus for five or six days (Thucydides, History of the Peloponnesian War 8.99.1)
Mindarus receives two days' provisions at Chios and, sailing along the coast, reaches Rhoeteum just before midnight (Thucydides, History of the Peloponnesian War 8.101.2–3)
18 Athenian ships at Sestos escape by night, and four are overtaken and captured and burned off Elaeus (Thucydides, History of the Peloponnesian War 8.102.1–2)

Southern Europe (22)

Archelaus besieged Pydna and took it, moving the city about 20 stadia inland from the sea. (Diodorus Siculus, Library of History 13.49.2)
Pro-Alcibiades elements in the Samos camp send Peisander to Athens to plan a change of constitution (Plutarch's Parallel Lives Plut. Alcibiades 26)
Dieitrephes abolishes Thasos' democracy, but within two months the Thasians build walls and prepare to break away (Thucydides, History of the Peloponnesian War 8.64.2–3)
Peisander's faction assassinates the popular leader Androcles and spreads word that only 5,000 will take part in politics (Thucydides, History of the Peloponnesian War 8.65.2–3)
At an assembly held at the sanctuary of Colonus, a motion to amend the constitution passes, making a Council of 400 possible (Thucydides, History of the Peloponnesian War 8.67.2–3)
The 400 enter the council house with daggers hidden, pay the councillors their wages and dismiss them (Thucydides, History of the Peloponnesian War 8.69.4)
The 400 ask Agis for peace, but Agis does not trust them, comes down to the walls of Athens and withdraws (Thucydides, History of the Peloponnesian War 8.71.1)
The Samian people block the 300 oligarchs and kill 30, with the crew of the Paralus in the lead (Thucydides, History of the Peloponnesian War 8.73.5–6)
The army at Samos swears to defend democracy and oppose the 400, and elects new generals (Thucydides, History of the Peloponnesian War 8.75.2)
Thrasybulus brings Alcibiades to Samos, where he is elected general and opposes a march on Athens (Thucydides, History of the Peloponnesian War 8.82.1–2)