The Trans-Iranian Railway (Persian: راه آهن سراسری ایران) was a major railway building project started in 1927 and completed in 1938, under the direction of the Persian monarch, Reza Shah, and entirely with indigenous capital. It links the capital Tehran with the Persian Gulf and Caspian Sea. The railway connected Bandar Shah (now: Bandar Torkaman) in the north and Bandar Shahpur (now: Bandar-e Emam Khomeyni) in the south via Ahvaz, Ghom and Tehran.During the land reforms implemented by Mohammad Reza Shah in 1963 as part of the "White Revolution" the Trans-Iranian railway was extended to link Tehran to Mashhad, Tabriz, and Isfahan.
Persian, also known by its endonym Farsi, is a Western Iranian language belonging to the Iranian branch of the Indo-Iranian subdivision of the Indo-European languages. It is a pluricentric language predominantly spoken and used officially within Iran, Afghanistan and Tajikistan in three mutually intelligible standard varieties, namely Iranian Persian, Dari Persian and Tajiki Persian. It is also spoken natively in the Tajik variety by a significant population within Uzbekistan, as well as within other regions with a Persianate history in the cultural sphere of Greater Iran. It is written officially within Iran and Afghanistan in the Persian alphabet, a derivation of the Arabic script, and within Tajikistan in the Tajik alphabet, a derivation of Cyrillic.
Reza Shah Pahlavi, commonly known as Reza Shah, was the Shah of Iran from 15 December 1925 until he was forced to abdicate by the Anglo-Soviet invasion of Iran on 16 September 1941.
Tehran is the capital of Iran and Tehran Province. With a population of around 8.7 million in the city and 15 million in the larger metropolitan area of Greater Tehran, Tehran is the most populous city in Iran and Western Asia, and has the second-largest metropolitan area in the Middle East. It is ranked 24th in the world by the population of its metropolitan area.
The idea of a railway connecting Russia and India was proposed by several private Russian promoters in 1889, 1900, and 1905. However, the Russian government declined such proposals, fearing that it would jeopardize Russia's geographically enabled commercial dominance in Iran as well as complicate relations with the British. In 1889 Russia and the Shah agreed that no railways could be built in Iran without the mutual consensus of the Russians. However, by 1910 the agreement was vetoed in the Iranian Constitutional Revolution. Fears that Russian interests were no longer primary, alongside the surfacing of anti-Russian political forces in the country, and the emergence of the German threat, made it more important than ever for the country to protect its commercial interests in Iran by building a railway.
Russia, or the Russian Federation, is a transcontinental country in Eastern Europe and North Asia. At 17,125,200 square kilometres (6,612,100 sq mi), Russia is by a considerable margin the largest country in the world by area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with about 146.79 million people as of 2019, including Crimea. About 77% of the population live in the western, European part of the country. Russia's capital, Moscow, is one of the largest cities in the world and the second largest city in Europe; other major cities include Saint Petersburg, Novosibirsk, Yekaterinburg and Nizhny Novgorod. Extending across the entirety of Northern Asia and much of Eastern Europe, Russia spans eleven time zones and incorporates a wide range of environments and landforms. From northwest to southeast, Russia shares land borders with Norway, Finland, Estonia, Latvia, Lithuania and Poland, Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, China, Mongolia and North Korea. It shares maritime borders with Japan by the Sea of Okhotsk and the U.S. state of Alaska across the Bering Strait. However, Russia recognises two more countries that border it, Abkhazia and South Ossetia, both of which are internationally recognized as parts of Georgia.
India is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia.
In order for the railway to be built, the problem of raising enough capital to fund the project was discussed. The Russo-Japanese War of 1905 was one of several factors leaving Russia on a tight budget, preventing Russia from providing the funds.The British were solicited as well, but the request could not be granted, pushing back initiation of the railway's construction further. Nikolay Khomyakov, President of the Duma, and I.A. Zveginstov, supporters of the Anglo-Russian Entente, promoted a private initiative for a railway connecting India and Europe, to counteract the economic threat Germany posed to the region. Germany's influence over the region was enabled by the Baghdad Railway, which connected Germany and the Ottoman Empire (modern-day Turkey, Syria and Iraq), enabling Germany to begin plans for connecting the railway to Tehran to increase its commercial enterprise. Despite opposition from the Russian Ministry of Foreign Affairs and Ministry of Finance, there was also a great deal of support for the project.
The Russo-Japanese War was fought during 1904–1905 between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and Korea. The major theatres of operations were the Liaodong Peninsula and Mukden in Southern Manchuria and the seas around Korea, Japan and the Yellow Sea.
Nikolay Alekseevich Khomyakov was a Russian politician.
The German Empire, also known as Imperial Germany, was the German nation state that existed from the unification of Germany in 1871 until the abdication of Kaiser Wilhelm II in 1918.
A Trans-Iranian Railway Consortium was formed by December 1910, consisting of twelve major Russian banks. Nine of these banks came to an agreement with major French banks in 1911, resulting in the crucial financial support needed to fund the railway. However, the final step needed to initiate the project was the support of the British, who wanted to restore financial stability in Iran but did not wish to be involved in the Trans-Iranian Railway Consortium through the proposed four to six million pound loan, proposed by Alexander Izvolsky, Imperial Foreign Minister 1906–10, and Sergey Sazonov, Foreign Minister 1910–16. Sazonov continued to urge for the loan, believing it to be the solution to prevent Persia from bankruptcy. Lord Curzon, British Viceroy of India, rejected the loan, suspicious that the Russians had an acquisitive eye on Britain's precious Indian colony, provoking stark protest from Sazonov against the accusation. Finally, in 1912, the Russian, French, and British financiers formed a Société d'Etudes for the Trans-Iranian railway.
France, officially the French Republic, is a sovereign state whose territory consists of metropolitan France in Western Europe and several overseas regions and territories. The metropolitan area of France extends from the Mediterranean Sea to the English Channel and the North Sea, and from the Rhine to the Atlantic Ocean. It is bordered by Belgium, Luxembourg and Germany to the northeast, Switzerland and Italy to the east, and Andorra and Spain to the south. The overseas territories include French Guiana in South America and several islands in the Atlantic, Pacific and Indian oceans. The country's 18 integral regions span a combined area of 643,801 square kilometres (248,573 sq mi) and a total population of 67.02 million. France is a unitary semi-presidential republic with its capital in Paris, the country's largest city and main cultural and commercial centre. Other major urban areas include Lyon, Marseille, Toulouse, Bordeaux, Lille and Nice.
Count Alexander Petrovich Izvolsky or Iswolsky was a Russian diplomat remembered as a major architect of Russia's alliance with Great Britain during the years leading to the outbreak of the First World War.
Sergei Dmitryevich Sazonov GCB was a Russian statesman and diplomat who served as Foreign Minister from November 1910 to July 1916. The degree of his involvement in the events leading up to the outbreak of World War I is a matter of keen debate, with some historians putting the blame for an early and provocative mobilization squarely on Sazonov's shoulders, and others maintaining that his chief preoccupation was "to reduce the temperature of international relations, especially in the Balkans".
When Arthur von Gwinner, Chief Manager of Deutsche Bank and the Baghdad Railway, announced plans to build a section of the railway connecting Baghdad to Khanaqin by 1916, the Russians moved quickly to secure British support and French investments in the Société d'Etudes.The Russians were primarily concerned with the construction of the northern section of the line, extending from Astara to Tehran, while the British were more concerned with the southern section, since they already dominated the southern region and the Persian Gulf.
Deutsche Bank AG is a German multinational investment bank and financial services company headquartered in Frankfurt, Germany.
Khanaqin is a city in Iraq in Iraq's Diyala Governorate, near the Iranian border on the Alwand tributary of the Diyala River. It is the administrative center of the Khanaqin District, which comprises several towns as well as hundreds of villages. The city is divided into two parts by the Alwand, which has played a significant role in land cultivation and the establishment of a strong rural society in the area.
Meanwhile, the Balkan Wars in the Ottoman Empire (1912–13) created an unstable situation in the country, again putting off the initiation of the application. Such instability caused investors in the Société d'Etudes to hesitate in investing in a bankrupt Iran. Sazonov suggested that appointing a strong Iranian leader would aid the financial aspect of the railway project. Sa'd Dawla, former minister under former Muhammad Ali Shah, agreed to work with the two powers to use a grant from the Société d'Etudes[ which? ] and thus proceed with the construction of the Trans-Iranian Railway without the agreement of the newly formed parliament. However, Sir Edward Grey, Britain's Secretary of State for Foreign Affairs, refused to force the Iranians to accept Sa'd Dawla as Prime Minister, because of his aversion to the Constitutional movement in Iran.
The Balkan Wars consisted of two conflicts that took place in the Balkan Peninsula in 1912 and 1913. Four Balkan states defeated the Ottoman Empire in the first war. In the Second Balkan War, Bulgaria fought against all four original combatants of the first war along with facing a surprise attack from Romania from the north. The conflicts ended catastrophically for the Ottoman Empire, which lost the bulk of its territory in Europe. Austria-Hungary, although not a combatant, became relatively weaker as a much enlarged Serbia pushed for union of the South Slavic peoples. The war set the stage for the Balkan crisis of 1914 and thus served as a "prelude to the First World War".
Muhammad Ali Shah was the third King of Oudh from 7 July 1837 to 7 May 1842.
Edward Grey, 1st Viscount Grey of Fallodon,, better known as Sir Edward Grey, was a British Liberal statesman and the main force behind British foreign policy in the era of the First World War. An adherent of the "New Liberalism", he served as foreign secretary from 1905 to 1916, the longest continuous tenure of any holder in that office. He renewed the 1902 alliance with Japan in 1911. The centerpiece of his policy was a defense of France against German aggression, while avoiding a binding alliance with Paris. He supported France in the Moroccan crises of 1905 in 1911. Another major achievement was the Anglo-Russian entente of 1907. He resolved an outstanding conflict with Germany over the Baghdad railway in 1913, but successfully convinced the cabinet that Britain had a obligation and honor to defend France, and prevent Germany from controlling Western Europe in August 1914. Once the war began, there was little role for his diplomacy; he lost office in December 1916. He was a leading British supporter of the League of Nations. He is remembered for his "the lamps are going out" remark on 3 August 1914 on the outbreak of the First World War. He signed the Sykes-Picot Agreement on 16 May 1916. Ennobled in 1916, he was Ambassador to the United States between 1919 and 1920 and Leader of the Liberal Party in the House of Lords between 1923 and 1924.
The outcome of the Balkan Wars caused Russian and Britain to accept the probability of war between the Central Powers[ clarification needed ] in the near future, suggesting the necessity of strong Anglo-Russian relations. Sazonov grew frustrated with Britain's inability to compromise on a route incorporating India, and threatened to proceed with the northern route. Fearing the implications of the impending war, Grey at last found it in Britain's best interest to concede at last, and agreed to initiate application of the railway under the Balmoral conditions.[ clarification needed ] By this time Britain already had further consolidated its control over the Persian Gulf.
By June 1914 surveys for the Enzeli-Tehran section had begun, and by 1915 the results of the Astara-Tehran part of the railway were completed and published. Still, progress on the railway was slow. However, a few days after the outbreak of World War I, Russia repudiated its obligation to build the Tehran-Khanaqin line under the Potsdam Agreement.
After the substantial interruption of World War I, the project for constructing a standard-gauge 1,435 mm (4 ft 8 1⁄2 in) railway across Iran was initiated by Reza Shah Pahlavi as part of numerous reforms contributing to the drastic modernization of Iran that occurred over the decades between World War I and World War II. Although technically independent, Iran was still a financially devastated and weak country. Yet the decade of the thirties brought the emergence of an economic market, a drastic increase in modern industries, a rise in exports, and an increase in agricultural output.
Initially, British and Russian observers considered the implantation of railroads as the ultimate solution to the immense transportation problems Iran faced due to sparsely settled population, the lack of rivers, high mountains, and inhospitable desert regions of the country. Many Americans and British opposed the Trans-Iranian Railway, suggesting more efficient and less expensive modes of transportation, such as the U.S. Army's Motor Transport Service, which hauled about a fourth of the volume hauled by the railway to the Soviet border. Some British critics, including General Percy Sykes, opposed the railway because it ran north to south, rather than from west to east. The west to east route was preferred because it would allow the British direct access to their military bases in India and Mesopotamia, and at the same time, avoiding the threat of commercial loss of profit to Russia and any foreign rival.
There were also Iranians opposed to the building of the railway as well, believing that the money could instead be much more effectively used on roads.However, if a cabinet minister was caught criticizing the extensive tax burden the railway produced, he could be placed in prison on counts of being a British collaborator, decidedly attempting to keep Iran backwards for his own financial and strategic goals.
While it may seem logical to attribute the reduction in transportation prices to the Trans-Iranian Railway, in reality it contributed minimally. Although much opposition to the railway was politically and financially motivated, the railway was an expensive tax-burden, costing Iran 2,195,180,700 rials through 1938-1939.The majority of capital used to fund the railway was provided through taxes on goods such as sugar and tea, produced in plants set up by the industries ministry, as part of Reza Shah Pahlavi's reform movement.
In 1924 the American company Ulen negotiated with Prime minister Reza Khan (the later Reza Shah) an agreement to do a feasibility study for a railway line Khorramshahr and the Caspian Sea.
In the following years Reza who became Shah in 1925 had legislation passed in parliament which secured internal Iranian funding for the railroad project from taxes levied on consumption of sugar and other goods thus excluding a new round of external debts that had bogged down the rulers of Iran before World War I.
In further negotiations it was agreed first to construct 2 test lines starting from the northern and the southern end of the projected Transiranian Railroad in order to establish cost for an agreement on the whole line. Against competing interests from other countries the Americans decided to form a joint venture with German companies.
From 1927 an international syndicate called "Syndicat du Chemin du Fer en Perse" consisting of the American Ulen and Company and a German "Konsortium für Bauausführungen in Persien" (formed by 3 German companies Philipp Holzmann, Julius Berger and Siemens Bauunion) undertook the construction of the initial test lines. The Americans brought the line from Bandar Shahpur via Ahvaz up to Dezful. The German group started from the new harbour of Bandar Shah on the Caspian coast to the foothills of the Alborz mountains at Shahi (Qaem Shahr). The Americans terminated their contract in 1930 after delayed payments by the government resulting from a conflict with Reza Shah.
In April 1933 Iran concluded a contract with the Danish firm Kampsax. Kampsax at that time was active in railway construction in Turkey and the Shah followed the Turkish recommendation which had the additional advantage of bringing in a company from a small country which posed no political risk for Iranian independence. Kampsax subcontracted the project in 43 lots to companies from Europe, the USA and Iran. Kampsax engineers supervised the works on each lot, the works being coordinated from the head office in Tehran. The contract required Kampsax to complete the line by May 1939. Kampsax completed the project under-budget and ahead of schedule, with it being formally opened throughout on 26 August 1938.
The first official steam locomotive conductor to ride the line was an Iranian named Hossein Orang. km long, has about 230 tunnels and 4100 bridges and its highest point is at Arak, 2,220 m above sea level. However, Kampsax' contractors laid relatively lightweight rails, ranging from 67 to 75 lbs per yard, that restricted the axle loads that the line could carry.The first lines passed through formidable mountains. Long stretches have gradients of up to 1 in 36 and hillclimbing techniques such as railway spirals. The Three Golden Lines spiral is on the Mazandaran branch in the Sewatcow (Savadkuh) County of Mazanderan. The line ascends or descends in a short distance by passing three times in the same area at different heights. Trains descend towards Sari or ascend in the opposite direction by going through the Dowgal twin tunnels. The line is 1,394
Various geological problems were encountered, requiring abandonment of some tunnels and realignment of the route through different terrain:
In 1936 Beyer Peacock supplied Iran with four Garratt 2-8-4 + 4-8-2 articulated locomotives (works numbers 6787–6890).In 1938 these became class 86.01. Until the British invasion of Iran in 1941 (see below, Anglo-Soviet invasion of Iran) these Garratts seem to have been the only standard gauge British locomotives in Iran.
German manufacturers supplied 65 steam locomotives for the opening of the line in 1938.49 were 2-8-0 Consolidations: 24 from Krupp forming class 41.11, 16 from Henschel und Sohn forming class 41.35 and nine from Maschinenfabrik Esslingen forming class 41.51. The other 16 were Henschel 2-10-0 Decapods forming class 51.01.
The Trans-Iranian acquired 10 of the locomotives that Kampsax had used to build the line.These were Gölsdorf two-cylinder compound 0-10-0 freight locomotives built between 1909 and 1915 as Austrian State Railways class 80 by Wiener Neustädter Lokomotivfabrik, Lokomotivfabrik Floridsdorf and Lokomotivfabrik der StEG in Vienna and by Breitfeld-Daněk in Bohemia. When the Iranian railway introduced its new numbering system in 1938 the Gölsdorf 0-10-0s kept their original Austrian numbers.
The British and Russians initially stated their reason for invading Iran was the Iranian government's failure to rid the country of Germans, who supposedly were planning an eventual coup d'etat.Yet there were other reasons for the invasion, and the Trans-Iranian Railways key location as part of the so-called "Persian Corridor" was one of the primary reasons for the Anglo-Soviet invasion of Iran in World War II. Despite Reza Shah's attempts to remain neutral, the allies decided it would be most effective to remove Reza Shah from the throne, using his young son, instead to assist in their use of the Trans-Iranian Railway to transport oil to Britain, and supplies to the Soviet Union.
In August 1941 Soviet, British and British Indian forces invaded Iran to protect their oil supply in Iran and tosecure the Persian Corridor supply route from the Persian Gulf to the Central Asian republics of the Soviet Union. In September 1941 the Allies took over operation of the Trans-Iranian Railway: British and Empire Royal Engineers (RE) commanded by Brigadier Godfrey D. Rhodes operating the Southern Division between Tehran and the port of Bandar Shahpur on the Persian Gulf and the Soviet Army operating the Northern Division between Tehran and the port of Bandar Shah on the Caspian Sea.
The RE expanded freight capacity by building new railway yards at Bandar Shahpur, Ahvaz and Andimeshk and a junction at Ahvaz for a new line to Khorramshahr on the Shatt al-Arab. In order to increase the line's locomotive fleet the RE built a yard at Abadan to transfer locomotives from merchant ships to barges to take them up the River Karun and a derrick on a jetty on the Karun at Ahwaz to unload them from the barges onto the railway.When the British first took over the southern part in 1941, the railway was only able to move one freight train per day. The railroad hauled a total volume of 978 tons a day in the first quarter of 1942. Yet by September 1943, they were able to move 5,400 tons per day, due to the import of new locomotives, wagons, and more skilled individuals.
The Southern Division locomotive depot at Ahvaz had two German 2-10-0s, seven German 2-8-0s, two class 41.01 2-8-0s built by Beyer, Peacock & Co. in 1934, two class 80.14 0-10-0s from an Austrian locomotive builder and seven smaller locomotives. The RE found that all except the 2-10-0s were in poor condition, as was some of the freight rolling stock. In December dozens of LMS 2-8-0 steam locomotives and 840 20 ton freight wagons started to arrive from Britain.27 coal-burning LMS 2-8-0s, designated class 41.100 in the Iranian State Railways numbering system, were in service by February 1942. Once enough LMS 2-8-0s were in service some of the German locomotives were released to increase the fleet on the Northern Division that the Soviets were operating. From February until August 1942 96 oil-burning LMS 2-8-0s, designated class 41.150, entered service on the Southern Division and by December 1942 another 19 class 41.100 coal-burners had joined them. In the same year Davenport Locomotive Works supplied 24 diesel-mechanical 0-4-0 switchers, designated class 20.01, that Iran had ordered before the Allied invasion.
In December 1942 the US Army Transportation Corps (USATC) replaced the British and Empire force operating the Southern Division. km) the line has 144 tunnels, in which smoke and oil fumes created harsh working conditions for steam locomotive crews. A limited water supply throughout the route and the hot climate of the southern plains formed further difficulties for steam locomotive operation. The USATC therefore considered diesel-electric locomotives more suitable and requisitioned the 13 ALCO RS-1s built and had them converted to ALCO RSD-1 1,000 horsepower Co-Co locomotives. An additional 44 RSD-1s were built for use in Iran. These totalled only 57 locomotives so initially they were used to operate only the southern part of the Southern Division between Bandar Shahpur and Andimeshk.In 165 miles (266
For traffic between Andimeshk and Tehran the USATC brought 91 S200 Class steam locomotives, designated class 42.400 in the Iranian State Railways numbering system. The USATC also introduced another 3,000 freight cars.In April 1943 another 18 ALCO RSD-1's entered service, enabling the USATC to return some LMS 2-8-0s to the British Middle East Command and extend diesel operation northwards, reaching Qom by September 1943 and regularly serving Tehran by May 1944. The USATC further increased freight traffic so that in 1944 it averaged 6,489 tons per day.
"Aid to Russia" traffic ceased by May 1945 and in June the USATC withdrew its RSD-1'sand returned control to the British authorities. Shortly afterwards the British restored the line to Iranian State Railways, the predecessor to the Islamic Republic of Iran Railways.
The railway was extended from Bandar Shah to Gorgan in 1961.
In 2014 the Kazakhstan - Turkmenistan - Iran railway link was completed and made operational, connecting Kazakhstan and Turkmenistan with Iran, with a new line connecting Gorgan to Etrek in Turkmenistan. 1,520 mm (4 ft 11 27⁄32 in) Russian gauge, thus the Iranian Railways maintain break-of-gauge services at the border with Turkmenistan.Former states of the Soviet Union have railways using a
The Pahlavi dynasty was the last ruling house of the Imperial State of Iran from 1925 until 1979, when the Persian monarchy was overthrown and abolished as a result of the Iranian Revolution. The dynasty was founded by Reza Shah Pahlavi in 1925, a former brigadier-general of the Persian Cossack Brigade, whose reign lasted until 1941 when he was forced to abdicate by the Allies after the Anglo-Soviet invasion of Iran. He was succeeded by his son, Mohammad Reza Pahlavi, the last Shah of Iran.
Ahvaz is a city in the southwest of Iran and the capital of Khuzestan province. Ahvaz's population is about 1,300,000 and its built-up area with the nearby town of Sheybani is home to 1,136,989 inhabitants. It is home to Persians, Arabs, Lurs (Bakhtiaris), Dezfulis, Shushtaris, etc. and different languages are spoken in it, such as Persian, Arabic, the Persian dialects of Luri (Bakhtiari), Dezfuli, Shushtari, etc.
The Persian Corridor was a supply route through Iran into Soviet Azerbaijan by which British aid and American Lend-Lease supplies were transferred to the Soviet Union during World War II.
Bandar-e Emam Khomeyni is a city and capital of Bandar-e Emam Khomeyni District of Mahshahr County, Khuzestan Province, Iran. At the 2006 census, its population was 67,078, in 14,681 families.
The history of Khuzestan Province, a province in southwestern Iran, extends from the ancient pre-Aryan Elamite civilization to the modern day Islamic Republic.
The United States Army Transportation Corps (USATC) S100 Class is a 0-6-0 steam locomotive that was designed for switching (shunting) duties in Europe and North Africa during World War II. Several were later used on railways in Austria, Great Britain, France, Greece, Italy, Yugoslavia, Palestine, Iraq, Iran, the Netherlands, Israel and China.
The United States Army Transportation Corps (USATC) S200 Class is a class of 2-8-2 steam locomotive. They were introduced in 1941 and lent-leased to the United Kingdom for use in the Middle East during World War II.
Mirza Hasan Ashtiani, commonly known by the bestowed title Mostowfi ol-Mamalek was an Iranian politician who served as Prime Minister on six occasions from 1910 to 1927.
The Islamic Republic of Iran Railways is the national state-owned railway system of Iran. The Raja Passenger Train Company is an associate of the IR, and manages its passenger trains. The Railway Transportation Company is an associate of the IR to manage its freight transport. The Ministry of Roads & Urban Development is the state agency that oversees the IRIR. Some 33 million tons of goods and 29 million passengers are transported annually by the rail transportation network, accounting for 9 percent and 11 percent of the whole transportations in Iran (2011).
The Veresk bridge is a masonry arch bridge in northern Iran. It was constructed mostly by Austrians before World War II by leadership of an engineer named Walter Aigner, constructed during the reign of Reza Shah. It is located in the Veresk district of Savadkuh County, in Mazandaran province.
The Persian Cossack Brigade or Iranian Cossack Brigade was a Cossack-style cavalry unit formed in 1879 in Persia. It was modelled after the Caucasian Cossack regiments of the Imperial Russian Army. Until 1920, it was commanded by Russian officers, while its rank and file were composed of ethnic Caucasians and later on Persians as well. During much of the Brigade's history it was the most functional and effective military unit of the Qajar Dynasty. Acting on occasion as kingmakers, this force played a pivotal role in modern Iranian history during the Revolution of 1905–1911, the rise of Reza Shah, and the foundation of the Pahlavi Dynasty.
The Ferrovie dello Stato Class 737 consisted of 15 ex-British War Department locomotives of the Stanier Class 8F type purchased in 1946.
The Persian Constitutional Revolution, also known as the Constitutional Revolution of Iran, took place between 1905 and 1911. The revolution led to the establishment of a parliament in Persia (Iran) during the Qajar dynasty.
The Socialist Party was a leading left-wing political party active in Iran during the 1920s. A minor group of the same name appeared for a while in the 1940s.
1921 Persian coup d'état, known in Iran as 3 Esfand coup d'état, refers to several major events in Persia in 1921, which eventually led to the establishment of the Pahlavi dynasty as the ruling house of the country in 1925.
The Anglo-Soviet invasion of Iran, also known as the Anglo-Soviet invasion of Persia, was the joint invasion of Iran in 1941 during the Second World War by the United Kingdom and the Soviet Union. The invasion lasted from 25 August to 17 September 1941 and was codenamed Operation Countenance. Its purpose was to secure Iranian oil fields and ensure Allied supply lines for the USSR, fighting against Axis forces on the Eastern Front. Though Iran was neutral, the Allies considered Reza Shah to be friendly to Germany, deposed him during the subsequent occupation and replaced him with his young son Mohammad Reza Pahlavi.
In the second half of the 19th century, during the time of Nasser-al-Din Shah, a short horse-driven suburban railway was established south of Tehran that was later converted to steam. This line was closed in 1952.
The elections for the sixth Majlis ended on 27 June 1926.
Socialism in Iran or Iranian socialism is a political ideology that traces its beginnings to the 20th century and encompasses various political parties in the country. Iran experienced a short Third World Socialism period at the zenith of the Tudeh Party after the abdication of Reza Shah and his replacement by his son, Mohammad Reza Pahlavi. After failing to reach power, this form of third world socialism was replaced by Mosaddegh's populist, non-aligned Iranian nationalism of the National Front party as the main anti-monarchy force in Iran, reaching power (1949–1953), and it remained with that strength even in opposition until the rise of Islamism and the Iranian Revolution. The Tudehs have moved towards basic socialist communism since then.