Khorramshahr in the context of "Bahrani people"

The Karun (Persian: کارون, IPA: [kɒːˈɾuːn]), the Ancient Greek Eulaeus (Greek: Εὔλαιος or Εὐλαῖος, Hebrew Ulai (Hebrew: אולי), is the Iranian river with the highest water flow, and the country's only navigable river. It is 950 km (590 mi) long. The Karun rises in the Zard Kuh mountains of the Bakhtiari district in the Zagros Range, receiving many tributaries, such as the Dez and the Kuhrang. It passes through the city of Ahvaz, the capital of the Khuzestan Province of Iran, before emptying to its mouth into Arvand Rud.

The Karun continues toward the Persian Gulf, forking into two primary branches on its delta – the Bahmanshir and the Haffar – that join the Arvand Rud, emptying into the Persian Gulf. The important Island of Abadan is located between these two branches of the Karun. The port city of Khorramshahr is divided from the Island of Abadan by the Haffar branch.

The Al-Faw peninsula (Arabic: شبه جزيرة الفاو; also transliterated as Fao or Fawr) is a peninsula in the Persian Gulf, located in the extreme southeast of Iraq. The marshy peninsula is 20 km (12 mi) southeast of Iraq's third largest city, Basra, and is part of a delta for the Shatt al-Arab river, formed by the confluence of the major Euphrates and Tigris rivers. The al-Faw peninsula borders Iran to the northeast, with the cities of Abadan and Khorramshahr on the opposite side of the Shatt al-Arab, and Kuwait to the southwest, opposite from Bubiyan Island and Warbah Island, near the Iraqi city of Umm Qasr.

Al-Faw, the only significant town on the peninsula and its namesake, is a fishing town and port which during Saddam Hussein's presidency featured the main naval base of the Iraqi Navy. The remainder of the al-Faw peninsula is otherwise lightly inhabited, with few civilian buildings or settlements and most of its few residents involved in the fishing, oil, or shipping industries. It is the site of a number of important oil installations, most notably Iraq's two main oil tanker terminals: Khor al-Amaya and Mina al-Bakr, due to its chief importance as a strategic location controlling access to the Shatt al-Arab waterway and thus access to the port of Basra.

Mandaic, or more specifically Classical Mandaic, is the liturgical language of Mandaeism and a South Eastern Aramaic variety in use by the Mandaean community, traditionally based in southern parts of Iraq and southwest Iran, for their religious books. Mandaic, or Classical Mandaic, is still used by Mandaean priests in liturgical rites. The modern descendant of Mandaic or Classical Mandaic, known as Neo-Mandaic or Modern Mandaic, is spoken by a small group of Mandaeans around Ahvaz and Khorramshahr in the southern Iranian Khuzestan province.

Liturgical use of Mandaic or Classical Mandaic is found in Iran (particularly the southern portions of the country), in Baghdad, Iraq and in the diaspora (particularly in the United States, Sweden, Australia and Germany). It is an Eastern Aramaic language notable for its abundant use of vowel letters (mater lectionis with aleph, he only in final position, ‘ayin, waw, yud) in writing, so-called plene spelling (Mandaic alphabet) and the amount of Iranian and Akkadian language influence on its lexicon, especially in the area of religious and mystical terminology. Mandaic is influenced by Jewish Aramaic, Samaritan Aramaic, Hebrew, Greek, Latin, in addition to Akkadian and Parthian.

Iran has a long paved road system linking most of its towns and all of its cities.

Trains operate on 11,106 km (6,942 mi) of railroad track. The country's major port of entry is Bandar-Abbas on the Strait of Hormuz. After arriving in Iran, imported goods are distributed throughout the country by trucks and freight trains. The Tehran–Bandar-Abbas railroad, opened in 1995, connects Bandar-Abbas to the railroad system of Central Asia via Tehran and Mashhad. Other major ports include Bandar e-Anzali and Bandar e-Torkeman on the Caspian Sea and Khorramshahr and Bandar-e Emam Khomeyni on the Persian Gulf.

Mohammad Shah Qajar (Persian: محمدشاه قاجار; born Mohammad Mirza; 5 January 1808 – 5 September 1848) was the third Qajar shah of Iran from 1834 to 1848, inheriting the throne from his grandfather, Fath-Ali Shah. From a young age, Mohammad Mirza was under the tutelage of Haji Mirza Aqasi, a local dervish from Tabriz whose teachings influenced the young prince to become a Sufi-king later in his life. After his father Abbas Mirza died in 1833, Mohammad Mirza became the crown prince of Iran and was assigned with the governorship of Azarbaijan. After the death of Fath-Ali Shah in 1834, some of his sons including Hossein Ali Mirza and Ali Mirza Zel as-Soltan rose up as claimants to the throne. Mohammad Shah soon suppressed the rebellious princes and asserted his authority.

Mohammad Shah dismissed and executed his tactful premier, Abol-Qasem Qa'em-Maqam, and appointed his favourite, Haji Mirza Aqasi, as the grand vizier. The new shah's main goal was to reestablish the rule of the Iranian government in the rebellious city of Herat. In 1837 he marched to Herat and laid a futile siege on the city, which was eventually withdrawn when the British government threatened to invade Iran. On his return, Mohammad suppressed a revolt in Isfahan led by the major clergy figure Mohammad Bagher Shafti. Through British-Russian mediation, he concluded the Second Treaty of Erzurum with the Ottoman Empire, after initially wanting retaliation for the sack of Khorramshahr by the Ottoman governor of Baghdad.

The Bahmanshir channel (Persian: بهمن‌شیر, IPA: [bæhmænˈʃiːɾ]) is a secondary estuary of the Karun River that parallels the Shatt al-Arab/Arvand Rud waterway on the far side of the Abadan Island, Iran, for 70 miles before emptying into the Persian Gulf.

The Bahamanshir served as the main estuary of the Karun River before the digging of the Haffar canal, by the Daylamite Buwayhid king Panah Khusraw Adud ad-Dawlah, that joined the Karun to the Arvand Rud / Shatt al-Arab waterway at the site of the present-day Khorramshahr. The Haffar in time became the main estuary of the Karun, relegating the Bahmanshir to a secondary estuary status.