This article is about the strait. For the surrounding neighborhoods of İstanbul, see Boğaziçi. For the university in Turkey, see Boğaziçi University. For the ancient Hellenic state, see
Bosporan Kingdom.


Satellite image of the Bosporus, taken from the International Space Station in April 2004
The
Bosporus or
Bosphorus, also known as the
Istanbul Strait, (
Turkish:
İstanbul Boğazı) (
Greek:
Βόσπορος) is a
strait that forms the boundary between the
European part (
Rumelia) of
Turkey and its
Asian part (
Anatolia). The world's narrowest strait used for
international navigation, it connects the
Black Sea with the
Sea of Marmara (which is connected by the
Dardanelles to the
Aegean Sea, and thereby to the
Mediterranean Sea). It is approximately 30
km long, with a maximum width of 3,700
metres at the northern entrance, and a minimum width of 700 metres between Kandilli and Aşiyan; and 750 metres between Anadoluhisarı and Rumelihisarı. The depth varies from 36 to 124 metres in midstream.
The shores of the strait are heavily populated as the city of
Istanbul (with a metropolitan area in excess of 11 million inhabitants) straddles it.
Two bridges cross the Bosporus. The first, the
Bosphorus Bridge, is 1074 metres long and was completed in
1973. The second,
Fatih Sultan Mehmet (Bosphorus II) Bridge, is 1090 metres long, and was completed in
1988 about five kilometres north of the first bridge. A third road bridge is also being planned for one of seven locations designated by the Turkish Government. The location is being kept secret to avoid an early explosion in land prices.
Another crossing,
Marmaray, is a 13.7 kilometre-long
rail tunnel currently under construction and expected to be completed in
2008. Approximately 1,400 metres of the tunnel will run under the strait, at a depth of about 55 metres.
Associations


Panoramic view of the Bosporus from the hills of the Ulus neighbourhood


View of the
Bebek neighbourhood from the hills of the Bosporus


Cypriot]])
The name comes from the
Greek word
Bosporos (
Βόσπορος).
[1] Its
etymology is from
bous (
βοῦς:
ox)
[2] and
poros (
πόρος:
passage, strait),
[3] thus meaning "
oxen passage", which could reflect the older history of the region. The Greeks wrongly analysed it as
"ox-ford" or
"shallow sea ox passage"[1] and associated it with the
myth of
Io's travels after Zeus turned her into an ox for her protection.
[5] It has also been thought to be a Thracian form of
Phôsphoros (
Φωσφόρος), 'light-bearing', an epithet of the goddess
Hecate.
It is also said in myth that floating rocks known as the
Symplegades or Clashing Rocks once crushed any ship that attempted passage of the Bosporus until the hero
Jason obtained passage, whereupon the rocks became fixed, and Greek access to the Black Sea was opened.
Formation of the Bosporus
The exact cause for the formation of the Bosporus remains the subject of vigorous debate among geologists. Thousands of years ago, the
Black Sea became disconnected from the
Aegean Sea. One recent theory (published in 1997 by William Ryan and
Walter Pitman from
Columbia University) contends that the Bosporus was formed about 5600
BCE when the rising waters of the Mediterranean/
Sea of Marmara breached through to the
Black Sea, which at the time (according to the theory) was a low-lying body of fresh water.
Some have argued that the resulting massive flooding of the inhabited and probably farmed northern shores of the Black Sea is thought to be the historic basis for the
flood stories found in the
Epic of Gilgamesh and in the
Bible in
Genesis, Chapters 6-9. On the other hand, there is also evidence for a flood of water going in the opposite direction, from the Black Sea into the
Sea of Marmara around 7000 or 8000 BCE.
Ancient Greece, Rome, the Byzantines and the Ottoman Empire
St.
Jerome's
Vulgate translates the Hebrew
besepharad in Obadiah, 1-20 as "Bosforus",
[6] but other translations give it as "
Sepharad" (probably
Sardis, but later identified with Spain).
As the narrowest point of passage between the Black Sea and the Mediterranean, the Bosporus has always been of great commercial and strategic importance. The Greek city-state of
Athens in the
5th century BC, which was dependent on grain imports from
Scythia, therefore maintained critical alliances with cities which controlled the straits, such as the
Megarian colony
Byzantium.
The strategic significance of the strait was one of the factors in the decision of the Roman Emperor
Constantine the Great to found there in
330 AD his new capital,
Constantinople, which came to be known as the capital of the
Eastern Roman Empire. On May 29, 1453 it was conquered by the emerging
Ottoman Empire. In fact, as the Ottoman Turks closed in on Constantinople, they constructed a fortification on each side of the strait, Anadoluhisarı (
1393) and Rumelihisarı (
1451). They later renamed the city
Istanbul.
Strategic importance
The strategic importance of the Bosporus remains high, and control over it has been an objective of a number of hostilities in modern history, notably the Russo-Turkish War, 1877-1878, as well as of the attack of the
Allied Powers on the
Dardanelles in
1915 in the course of the
First World War. Several international treaties have governed vessels using the waters, including the
Montreux Convention Regarding the Regime of the Turkish Straits, signed in
1936. In the conferences during
World War II, Soviet leader
Josef Stalin openly requested the concession of Soviet military bases on the
Turkish Straits, even though Turkey was not involved in the war. This incident, coupled with Stalin's demands for the restitution of the Turkish provinces of
Kars,
Artvin and
Ardahan to the
Soviet Union (which were lost by Turkey with the Russo-Turkish War (1877-1878) but were regained with the
Treaty of Kars in 1921) was one of the main reasons why Turkey decided to give up its principle of neutrality in foreign affairs and join
NATO in 1952.
[7][8][9][10] In more recent years, the Turkish Straits have become particularly important for the oil industry. Russian oil, from ports such as
Novorossyisk, is exported by tankers to western Europe and the U.S. via the Bosphorus and the
Dardanelles straits.
Sightseeing
The cheapest way to experience Bosphorus in Istanbul would be to take one of the public ferries that travel between the Anatolian and Rumelian sides of the city. They depart every 45 minutes, and cost 1.3
YTL (about 0.80 Euros). There are also faster ferries that take off every 10 minutes, but the slower ones will give you more opportunity to see the city.
One can also take a ride on a variety of tourist ships, from modern ones to Ottoman style ones.
See also
Notes
1.
^ Entry:
Βόσπορος at Henry George Liddell, Robert Scott, 1940,
A Greek-English Lexicon.
2.
^ Entry:
βοῦς at Henry George Liddell, Robert Scott, 1940,
A Greek-English Lexicon.
3.
^ Entry:
πόρος at Henry George Liddell, Robert Scott, 1940,
A Greek-English Lexicon.
4.
^ [Entry:
Βόσπορος at Henry George Liddell, Robert Scott, 1940,
A Greek-English Lexicon.
5.
^ Aeschylus,
Prometheus Bound, 733.
6.
^ Obadiah,
1-20:
7.
^ Foreign Policy Research Institute: The Turkish Factor in the Geopolitics of the Post-Soviet Space (Igor Torbakov)
8.
^ Robert Cutler: Turkish-Soviet Relations
9.
^ Answers.com: Russia's relations with Turkey
10.
^ Today's Zaman: Against who and where are we going to stand? (Ali Bulaç)
- * And the captivity of this host of the children of Israel shall possess that of the Canaanites, even unto Zarephath; and the captivity of Jerusalem, which is in Sepharad, shall possess the cities of the south. (KJV)
- And the captivity of this host of the children of Israel, all the places of the Chanaanites even to Sarepta: and the captivity of Jerusalem that is in Bosphorus, shall possess the cities of the south. (Douay-Rheims)
- et transmigratio exercitus huius filiorum Israhel omnia Chananeorum usque ad Saraptham et transmigratio Hierusalem quae in Bosforo est possidebit civitates austri. (Vulgate)
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The Bosporan kingdom or the Kingdom of the Cimmerian Bosporus was an ancient state, located in eastern Crimea and the Taman peninsula on the shores of the Cimmerian Bosporus.
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The Bosphorus Bridge, also called the First Bosphorus Bridge (Turkish: Boğaziçi Köprüsü or 1. Boğaziçi Köprüsü) is a bridge in Istanbul, Turkey spanning the Bosphorus strait (Turkish: Boğaziçi).
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For the song by James Blunt, see .
..... Click the link for more information. Fatih Sultan Bridge, also known as the Second Bosphorus Bridge (in Turkish: Fatih Sultan Mehmet Köprüsü or 2. Boğaziçi Köprüsü), is a bridge in Istanbul, Turkey spanning the Bosphorus strait (Turkish: Boğaziçi).
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