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Pahlavi Iran was the Iranian state under the rule of the Pahlavi dynasty from 1925 to 1979, when it was overthrown by the Islamic Revolution. Learn about the rise and fall of Reza Shah and Mohammad Reza Pahlavi, their reforms, foreign relations, and human rights issues.
Learn about the life and reign of the last Shah of Iran, who ruled from 1941 to 1979. Find out about his achievements, controversies, exile, death and legacy.
The Pahlavi dynasty was the last Iranian royal family that ruled from 1925 to 1979. It was founded by Reza Shah Pahlavi, a non-aristocratic soldier who took the name of the ancient Pahlavi language, and was overthrown by the Islamic Revolution in 1979.
- Overview
- Reza Shah: rise to power, secularization, and foreign intervention
- Rise of Mohammad Reza Shah, the power struggle with Mohammad Mosaddegh, and the 1953 coup
- The land reform law (1962), the White Revolution, and the popular reaction
- Social discontent and the buildup to the Iranian Revolution (1979)
- GeneratedCaptionsTabForHeroSec
Pahlavi dynasty, former ruling dynasty of Iran that consisted of two rulers: Reza Khan (ruled as Reza Shah Pahlavi; 1925–41) and his son Mohammad Reza (1941–79). It began following a coup d’état against the Qājār dynasty in 1921 and ended with Iran’s Islamic Revolution of 1979.
After centuries of misrule by its former rulers and the ravages of the war waged by foreign belligerents on its soil from 1914 to 1919, Iran in 1921 was prostrate, ruined, and on the verge of disintegration. The last of the shahs of the Qājār dynasty, Aḥmad Shah, was young and incompetent, and the cabinet was weak and corrupt. Patriotic and nationalist elements had long been outraged at the domination of Iran by foreign powers, especially Great Britain and Russia, both of which had strong commercial and strategic interest in the country. This situation led Reza Khan to use the effective and disciplined Persian Cossack Brigade that was at his command to take power and put an end to the chaos. He enlisted some young progressive Iranian elements and also received some encouragement from British diplomats for the endeavor. On February 21, 1921, he occupied Tehrān at the head of 1,200 men. A young journalist, Sayyid Zia al-Din Tabatabaʾi, became prime minister, while Reza Khan took command of all the military forces and was appointed minister of war a few weeks after.
Able to levy some taxes, he built up the army with the proceeds and then used the army to collect more taxes, until finally he had gained control over the entire country. As war minister, he was the real power behind several prime ministers in succession until 1923, when he became prime minister himself. Meanwhile, the sovereign, Aḥmad Shah, was ill and undergoing a lengthy cure in Europe. In spite of the entreaties of Reza Khan and the speaker of the Majles (Iranian parliament), the shah refused to return to Iran. Reza Khan then considered proclaiming a republic but was dissuaded by the strong opposition to the idea by the majority of the people. In 1925 the Majles deposed the absentee monarch, and a constituent assembly elected Reza Khan as shah, vesting sovereignty in the new Pahlavi dynasty.
During the reign of Reza Shah Pahlavi, educational and judicial reforms were effected that laid the basis of a modern state and reduced the influence of the religious classes (ʿulamāʾ). A wide range of legal affairs that had previously been the purview of Shiʿi religious courts were now either administered by secular courts or overseen by state bureaucracies, and, as a result, the status of women improved. The custom of women wearing veils was banned, the minimum age for marriage was raised, and strict religious divorce laws (which invariably favored the husband) were made more equitable. The number and availability of secular schools increased for both boys and girls, and the University of Tehrān was established in 1934, further eroding what had once been a clerical monopoly on education. Nonetheless, Reza Shah was selective on what forms of modernization and secularization he would adopt. He banned trade unions and political parties and firmly muzzled the press. Oil concessions were first granted in 1901, during the Qājār period, and the first commercially exploitable petroleum deposits were found in 1908. Reza Shah renegotiated a number of these concessions, despite the ire these agreements raised among the Iranian people. The concessions were to remain a violent point of contention in Iran for decades to come.
Reza Shah’s need to expand trade, his fear of Soviet control over Iran’s overland routes to Europe, and his apprehension at renewed Soviet and continued British presence in Iran drove him to expand trade with Nazi Germany in the 1930s. His refusal to abandon what he considered to be obligations to numerous Germans in Iran served as a pretext for an Anglo-Soviet invasion of his country in 1941. Intent on ensuring the safe passage of U.S. war matériel to the Soviet Union through Iran, the Allies forced Reza Shah to abdicate, placing his young son Mohammad Reza Shah Pahlavi on the throne.
Mohammad Reza Shah succeeded to the throne in a country occupied by foreign powers, crippled by wartime inflation, and politically fragmented. Paradoxically, however, the war and occupation had brought a greater degree of economic activity, freedom of the press, and political openness than had been possible under Reza Shah. Many political parties were formed in this period, including the pro-British National Will and the pro-Soviet Tūdeh (“Masses”) parties. These, along with a fledgling trade union movement, challenged the power of the young shah, who did not wield the absolute authority of his father. At the same time, the abdication of Reza Shah had strengthened conservative clerical factions, which had chafed under that leader’s program of secularization.
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Following the war, a loose coalition of nationalists, clerics, and noncommunist left-wing parties, known as the National Front, coalesced under Mohammad Mosaddegh, a career politician and lawyer who wished to reduce the powers of the monarchy and the clergy in Iran. Most important, the National Front, angered by years of foreign exploitation, wanted to regain control of Iran’s natural resources, and, when Mosaddegh became prime minister in 1951, he immediately nationalized the country’s oil industry. Britain, the main benefactor of Iranian oil concessions, imposed an economic embargo on Iran and pressed the International Court of Justice to consider the matter. The court, however, decided not to intervene, thereby tacitly lending its support to Iran.
Despite this apparent success, Mosaddegh was under both domestic and international pressure. British leaders Winston Churchill and Anthony Eden pushed for a joint U.S.-British coup to oust Mosaddegh, and the election of Pres. Dwight D. Eisenhower in the United States in November 1952 bolstered those inside the U.S. Central Intelligence Agency (CIA) who wished to support such an action.
Within Iran, Mosaddegh’s social democratic policies, as well as the growth of the communist Tūdeh Party, weakened the always-tenuous support of his few allies among Iran’s religious class, whose ability to generate public support was important to Mosaddegh’s government. In August 1953, following a round of political skirmishing, Mosaddegh’s quarrels with the shah came to a head, and the Iranian monarch fled the country. Almost immediately, despite still-strong public support, the Mosaddegh government buckled during a coup funded by the CIA. Within a week of his departure, Mohammad Reza Shah returned to Iran and appointed a new prime minister.
The period 1960–63 marked a turning point in the development of the Iranian state. Industrial expansion was promoted by the Pahlavi regime, while political parties that resisted the shah’s absolute consolidation of power were silenced and pushed to the margins. In 1961 the shah dissolved the 20th Majles and cleared the way for the land reform law of 1962. Under this program, the landed minority was forced to give up ownership of vast tracts of land for redistribution to small-scale cultivators. The former landlords were compensated for their loss in the form of shares of state-owned Iranian industries. Cultivators and workers were also given a share in industrial and agricultural profits, and cooperatives began to replace the large landowners in rural areas as sources of capital for irrigation, agrarian maintenance, and development.
The land reforms were a mere prelude to the shah’s “White Revolution,” a far more ambitious program of social, political, and economic reform. Put to a plebiscite and ratified in 1963, these reforms eventually redistributed land to some 2.5 million families, established literacy and health corps to benefit Iran’s rural areas, further reduced the autonomy of tribal groups, and advanced social and legal reforms that furthered the emancipation and enfranchisement of women. In subsequent decades, per capita income for Iranians skyrocketed, and oil revenue fueled an enormous increase in state funding for industrial development projects.
The new policies of the shah did not go unopposed, however; many Shiʿi leaders criticized the White Revolution, holding that liberalization laws concerning women were against Islamic values. More important, the shah’s reforms chipped away at the traditional bases of clerical power. The development of secular courts had already reduced clerical power over law and jurisprudence, and the reforms’ emphasis on secular education further eroded the former monopoly of the ʿulamāʾ in that field. (Paradoxically, the White Revolution’s Literacy Corps was to be the only reform implemented by the shah to survive the Islamic revolution, because of its intense popularity.) Most pertinent to clerical independence, land reforms initiated the breakup of huge areas previously held under charitable trust (vaqf). These lands were administered by members of the ʿulamāʾ and formed a considerable portion of that class’s revenue.
In 1963 a relatively obscure member of the ʿulamāʾ named Ruhollah Musavi Khomeini—a professor of philosophy at the Fayẕiyyeh Madrasah in Qom who was accorded the honorific ayatollah—spoke out harshly against the White Revolution’s reforms. In response, the government sacked the school, killing several students, and arrested Khomeini. He was later exiled, arriving in Turkey, Iraq, and, eventually, France. During his years of exile, Khomeini stayed in intimate contact with his colleagues in Iran and completed his religiopolitical doctrine of velāyat-e faqīh (Persian: “governance of the jurist”), which provided the theoretical underpinnings for a Shiʿi Islamic state run by the clergy.
Petroleum revenues continued to fuel Iran’s economy in the 1970s, and in 1973 Iran concluded a new 20-year oil agreement with the consortium of Western firms led by British Petroleum. This agreement gave direct control of Iranian oil fields to the government under the auspices of the NIOC and initiated a standard seller-buyer relationship between the NIOC and the oil companies. This apparent success, however, veiled deep-seated problems. World monetary instability and fluctuations in Western oil consumption seriously threatened an economy that had been rapidly expanding since the early 1950s and that was still directed on a vast scale toward high-cost development programs and large military expenditures. A decade of extraordinary economic growth, heavy government spending, and a boom in oil prices led to high rates of inflation, and—despite an elevated level of employment, held artificially high by loans and credits—the buying power of Iranians and their overall standard of living stagnated. Prices skyrocketed as supply failed to keep up with demand, and a 1975 government-sponsored war on high prices resulted in arrests and fines of traders and manufacturers, injuring confidence in the market. The agricultural sector, poorly managed in the years since land reform, continued to decline in productivity.
The shah’s reforms also had failed completely to provide any degree of political participation. The sole political outlet within Iran was the rubber-stamp Majles, dominated since the time of Mosaddegh by two parties, both of which were subservient to and sponsored by the shah. Traditional parties, such as the National Front, had been marginalized, while others, such as the Tūdeh Party, were outlawed and forced to operate covertly. Protest all too often took the form of subversive and violent activity by groups such as the Mojāhedīn-e Khalq and Fedāʾīyān-e Khalq, organizations with both Marxist and religious tendencies. All forms of social and political protest, either from the intellectual left or the religious right, were subject to censorship, surveillance, or harassment by SAVAK, and illegal detention and torture were common.
Many argued that since Iran’s brief experiment with parliamentary democracy and communist politics had failed, the country had to go back to its indigenous culture. The 1953 coup against Mosaddegh had particularly incensed the intellectuals. For the first time in more than half a century, the secular intellectuals, many of whom were fascinated by the populist appeal of Ayatollah Khomeini, abandoned their project of reducing the authority and power of the Shiʿi ʿulamāʾ and argued that, with the help of the clerics, the shah could be overthrown. In this environment, members of the National Front, the Tūdeh Party, and their various splinter groups now joined the ʿulamāʾ in a broad opposition to the shah’s regime. The shah’s dependence on the United States, his close ties with Israel—then engaged in extended hostilities with the overwhelmingly Muslim Arab states—and his regime’s ill-considered economic policies served to fuel the potency of dissident rhetoric with the masses.
In January 1978 thousands of young madrasah students took to the streets in protest after what they considered to be slanderous remarks made against Khomeini were printed in Eṭṭelāʿāt, a newspaper in Tehrān. As the protests widened, the shah vacillated between concession and repression. A cycle of violence began in which each protester killed by government forces fueled further protest, leading eventually to martial law in September. But the demonstrations against the shah continued to grow. On December 10, hundreds of thousands of protesters took to the streets in Tehrān alone. In January 1979, in what was officially described as a “vacation,” the shah and his family fled Iran. Mohammad Reza never abdicated, but a referendum held in his absence replaced his regime with an Islamic republic. On July 27, 1980, Mohammed Reza died in Cairo after a battle with lymphatic cancer.
Learn about the Pahlavi dynasty, the former ruling family of Iran that lasted from 1921 to 1979. Explore its rise and fall, its reforms and repression, and its conflicts with foreign powers and domestic opponents.
- Janet Afary
Oct 22, 2024 · Learn about the life and reign of the last shah of Iran, who ruled from 1941 to 1979 and faced a revolution that overthrew him. Explore his policies, achievements, challenges, and exile in this comprehensive article.
- The Editors of Encyclopaedia Britannica
- Mohammad Reza Shah Pahlavi was the eldest son of Reza Shah Pahlavi, Iran’s ruler and founder of the Pahlavi dynasty (1925). Educated in Switzerland...
- From 1960 to 1963 Mohammad Reza carried out a national development program called the White Revolution, which expanded transportation networks, fos...
- Mohammad Reza traveled to Egypt, Morocco, The Bahamas, and Mexico before entering the United States on October 22, 1979, for medical treatment of l...
- Mohammad Reza instituted reforms but presided over a tumultuous period. Discontent with his policies sparked rioting, allowing Ruhollah Khomeini to...
Oct 26, 2024 · Learn about the 1979 uprising that overthrew the Pahlavi monarchy and established an Islamic republic in Iran. Explore the historical, social, and political contexts, the key players, and the outcomes of the revolution.
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A biography of the last Shah of Iran, who ruled from 1941 to 1979 and was overthrown by the Islamic Revolution. Learn about his life, reign, achievements, criticism, and legacy.
