Bosporus

narrow strait in northwestern Turkey

11 dated entries naming Bosporus, drawn from 11 separate years between 476 BCE and 1352 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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5th century BC

476 BCECimon of Athens increases his power at the expense of Themistocles. He ousts Pausanias and the Spartans from the area around the Bosporus. The Spartans, hearing that Pausanias is intriguing with the Persians, recall him and he is "disciplined".source
409 BCEAlcibiades recaptures Byzantium, ending the city's rebellion from Athens. This action completes Athenian control of the Bosporus which secures the Athenian supply route for grain from the Bosporan Kingdom in the Black Sea region.source

4th century

330May 11 – Emperor Constantine the Great dedicates the Column of Constantine and Constantinople, or Nova Roma (modern-day Istanbul). He had spent four years expanding the city of Byzantium, having chosen the site for its strategic location on the Bosporus. The city became the capital of the Byzantine Empire.source

7th century

617Byzantine-Sassanid War: The Persian army under Shahin Vahmanzadegan conquers Chalcedon in Anatolia, and reaches the Bosporus, threatening Constantinople. Emperor Heraclius begins peace negotiations, promising an annual tribute of 1,000 talents of gold and silver. Shahin withdraws with his army to Syria, to focus on the invasion of Egypt.source
669Spring – Arab forces that have taken Chalcedon, on the Asian shore of the Bosporus, threaten the Byzantine capital Constantinople. The Muslim-Arabs are decimated by famine and disease. Yazid, the Arab commander, retreats to the island of Cyzicus (modern Turkey).source

11th century

1049Spring – Pecheneg Revolt: Emperor Constantine IX decides to transfer 15,000 Pecheneg warriors from their positions in the Balkans to the eastern front. Upon approaching the Bosporus, the Pechenegs decide to turn back, and march through Bulgaria, until they reach the Byzantine city of Serdia. Later, joined by followers, the Pecheneg tribes raise the banner of revolt in Thrace.source
1096August 2–6 – The People's Crusade reorganize their forces and gather supplies. Alexios I advises Peter the Hermit to wait for reinforcements but he ignores the advice. The People's army (some 30,000 men) is transported across the Bosporus – by the Byzantine fleet to Civetot (modern Turkey).source

12th century

1147September 10 – The German crusaders under Conrad III reach Constantinople, where there is a frosty exchange of letters between Conrad and Manuel I. The German forces make camp at Galata on the northern shore of the Golden Horn. Manuel orders that a full-scale effort must be made to transport the Germans, who are causing troubles by sacking the Philopatium, across the Bosporus.source

13th century

1203June 23 – The Crusader fleet comes within sight of Constantinople, and enters the Bosporus. The Byzantine capital is defended by a garrison of 15,000 soldiers (including 5,000 men of the Varangian Guard), and a fleet of 20 galleys. On June 26, the Byzantine troops skirmish with the Crusader forces, who attack, without success, the cities of Chalcedon and Chrysopolis.source

14th century

1302July 27 – Battle of Bapheus: To counter the Turkish threat at Nicomedia, Emperor Andronikos II Palaiologos sends a Byzantine force (some 2,000 men) to cross over the Bosporus to relieve the city. On the plain, Turkish forces (some 5,000 light cavalry) led by Sultan Osman I defeat the Byzantines, who are forced to withdraw to Nicomedia. After the battle, Andronikos loses control of the countryside of Bithynia, withdrawing to the forts. Meanwhile, Turkish forces capture Byzantine settlements, such as the coastal city of Gemlik.source
1352Süleyman Pasha (son of Orhan) is probably granted control of Çimpe Castle on the Gallipoli peninsula by Emperor John VI Kantakouzenos, the first territory west of the Bosporus held by the Ottoman Empire.source