Ayatollah Khomeini returned to Iran on Feb. 1, 1979, after 14 years in exile

See a timeline of the events that shaped the Iranian Revolution

From a defamatory newspaper editorial that sparked protests in January 1978 to Khomeini's return from exile and the Shah's flight from Iran in 1979, this timeline traces the rapidly escalating chain of events—protests, crackdowns, and political collapses—that toppled one of the Middle East's most powerful monarchies.

Iranians voted overwhelmingly to establish an Islamic Republic in March 1979

Just weeks after Khomeini's return, Iran held a national referendum to replace the monarchy with an Islamic Republic, and over 98% voted in favor (though the vote was criticized). The vote formalized the revolution's outcome, laying the foundation for a theocratic government that remains in place today.

Ayatollah Khomeini led the ideological opposition to the Shah from exile

Exiled in 1964 for opposing a law that granted diplomatic immunity to US military personnel in Iran, Khomeini built a large following by smuggling recorded sermons into Iran on cassette tapes. He aimed to replace the monarchy with an Islamic republic governed by religious law.

The Shah fled Iran in January 1979, ending nearly 38 years of Pahlavi rule

On Jan. 16, 1979, Mohammad Reza Shah left Iran with his wife, officially for a "vacation"—one he would never return from. His departure marked the effective collapse of the monarchy, as millions celebrated in the streets and power swiftly shifted to Khomeini's revolutionary movement.

Ayatollah Khamenei ruled Iran for 36 years after succeeding Khomeini as Supreme Leader

When Khomeini died in 1989, Ali Khamenei was appointed acting supreme leader on the same day. He served in this position until his death in February 2026, shaping Iran for nearly four decades.

Mohammad Reza Shah Pahlavi ruled Iran for nearly four decades before being ousted by the revolution

The last Shah of Iran came to power in 1941 and pursued rapid Westernization through his controversial reforms. His authoritarian rule, backed by the US, and his feared secret police, SAVAK, fueled mass resentment that ultimately drove him from power in 1979.

Mohammad Mosaddegh was ousted in a CIA-backed coup in 1953

Iran's democratically elected prime minister, Mosaddegh, nationalized the country's oil industry in 1951, challenging British and American control of Iran's resources. The CIA and British intelligence orchestrated a coup that ousted him and reinstated the Shah, fueling decades of Iranian distrust of the West.

Iraq invaded Iran in 1980, drawing the new Islamic Republic into a devastating eight-year war

Just a year after the revolution, Saddam Hussein invaded Iran, hoping to exploit its post-revolutionary instability. The brutal conflict killed hundreds of thousands in one of the century's deadliest conflicts and forced Khomeini's government to consolidate power.

Iran became a constitutional monarchy in 1906

A popular revolution forced the ruling Qajar Shah—a dynasty that had governed Iran since the late 18th century—to sign a constitution and establish a parliament, marking Iran's first major step toward democratic governance and limiting the monarchy's absolute power.

The 1979 Iranian Revolution inspired other Islamist movements and alarmed Sunni governments

By establishing the world's first modern Islamic theocracy, the revolution inspired Islamist movements across the region and alarmed Sunni Arab governments. The resulting rivalry between Shia Iran and Sunni Saudi Arabia has since fueled proxy conflicts in Lebanon, Iraq, Syria, and Yemen that persist today.

'Velayat-e faqih' is the religious doctrine that has governed Iran since the 1979 revolution

Meaning "guardianship of the Islamic jurist," the doctrine transfers all political and religious authority to the Shia clergy, with the supreme leader holding ultimate power over the state. Developed by Khomeini in the 1970s, it has served as the foundation of Iran's government since the revolution.

In 1979, Iranian students seized the US Embassy in Tehran, holding 52 Americans hostage for 444 days

Outraged by the US decision to allow the exiled Shah to enter the United States for medical treatment, student protesters stormed the embassy in November 1979. The crisis paralyzed the Carter presidency and ended with a negotiated release on the day of Ronald Reagan's inauguration.

Persia was officially called Iran by the international community in 1935

At the request of Reza Shah, the international community began using "Iran"—the name Iranians had always called their country—replacing the Western term "Persia." The change reflected a broader push for national identity and modernization under the Pahlavi dynasty.

Mosaddegh nationalized Iran's oil industry in 1951, threatening Western control of the country's resources

Before nationalization, British companies controlled most of Iran's oil wealth, with little revenue returned to Iranians. Mosaddegh's decision made him a national hero at home but triggered a Western-led embargo and ultimately contributed to the coup that removed him from power.

The Iranian Revolution relied largely on nonviolent tactics

Despite thousands of unarmed protesters killed by the Shah's forces, the revolution relied overwhelmingly on nonviolent tactics, including strikes, demonstrations, and civil disobedience, with up to 9 million Iranians peacefully taking to the streets, making it one of history's largest protest movements by population percentage.

Iran's 1979 revolution sparked a second oil shock—and reconfigured global energy markets.

Oil nationalization triggered the CIA‑backed 1953 coup in Iran

NPR's Four Days in August podcast recounts the four days of covert CIA‑UK operations in Iran that toppled Prime Minister Mossadegh in August 1953. Threats of Iranian oil nationalization were a major driver of the decision to facilitate regime change.

The UN found that the Islamic Republic of Iran used genocidal tactics after the revolution

A 2024 report classified Iran's mass executions of political prisoners in the 1980s as genocide and crimes against humanity, finding that thousands were arbitrarily killed under Khomeini's orders by "death committees" targeting perceived religious and political enemies.

Iran's Revolutionary Guard Corps became one of the most powerful forces in the Middle East

Created after the 1979 revolution to protect the new Islamic Republic, the IRGC grew into a force that controls Iran's ballistic missile arsenal, funds, and arms regional proxy groups such as Hezbollah and Hamas, and answers directly to the supreme leader.

The Shah used torture and other human rights abuses to maintain power before the revolution

A declassified 1976 US Embassy telegram acknowledged that the Shah held 3,400-3,500 political prisoners, documented torture allegations against the SAVAK secret police, and confirmed press censorship, even as American diplomats sought to minimize human rights concerns for Congress.

Hear how the US and Iran went from close allies to bitter adversaries after the 1979 revolution.

The 2007 animated film 'Persepolis' captures the Iranian Revolution through a child's eyes

The critically acclaimed film, based on Marjane Satrapi's graphic memoir, traces Iran's transformation from the Shah's rule through the revolution and its turbulent aftermath, showing how seismic political change shapes ordinary lives.

Read the New York Times 2016 obituary of Fidel Castro, the defining figure of the Cuban Revolution.

The primary language in Iran is Persian, also called Farsi

Spoken by the majority of Iran's 90 million people, Persian is one of the world's oldest continuously spoken languages, with a literary tradition stretching back over a thousand years. It is also widely spoken in Afghanistan and Tajikistan.

Salman Rushdie's 1988 religious satire, 'The Satanic Verses,' led to a government-sponsored death threat from Iran's Ayatollah Ruhollah Khomeini.

See how the rivalry between Iran and Israel has remade the Middle East

This 2025 documentary explores how the relationship between Iran, Israel, and the United States has shaped Middle Eastern geopolitics for decades. The film covers events leading up to and following the 2025 12-day war involving these nations.

The Taliban provided al-Qaida with a safe haven in Afghanistan before 9/11 and returned to power in 2021

A fundamentalist Islamist movement, the Taliban ruled most of Afghanistan before 9/11, providing al-Qaida with training grounds and sanctuary. After 20 years of war, it regained power following the U.S. withdrawal in 2021.

The exile and return of Charlie Chaplin

In 1952, amid accusations of communist ties and a threatened reentry ban during the Red Scare, Charlie Chaplin left the US and chose exile in Switzerland. Two decades later, he returned to accept an honorary Oscar, receiving a 12-minute standing ovation—the longest in history.

See a timeline of the major moments in Soviet history

Beginning with Lenin’s return to Russia from Germany in 1917 and ending with Gorbachev’s resignation on December 25, 1991, this timeline outlines the significant domestic and foreign policy developments that led to the rise and fall of the Soviet Union.

Six American diplomats secretly hid in the Canadian Embassy for months after escaping the hostage crisis

When Iranian students seized the US Embassy, six Americans slipped away and took refuge with the Canadian Ambassador. The CIA orchestrated a daring escape under the cover of a fake film crew—later depicted in the Academy Award-winning film "Argo."

A report found that the 2026 Iran war is the largest oil supply disruption in history.

Fidel Castro first launched the Cuban revolution on a small yacht

Fidel Castro's regime has lasted almost seven decades. That story began on Dec. 2, 1956, with the landing of a small yacht—dubbed the Granma—with 82 soldiers and Castro himself, as his onshore allies attacked military and government installations in advance of their arrival.

Since the revolution, approximately 1.4 million Cubans have fled to the US

Although Castro initially enjoyed broad support after toppling Batista in 1959, nearly 2 million Cubans chose exile in the years that followed. Most settled in the US, while others dispersed across Latin America and Europe, shaping migration patterns that persist to this day

Iran-Iraq war drained over $1T from the combined economies of Iran and Iraq

Across eight years (1980-88), Iran and Iraq each lost about $500 B in GDP, infrastructure destruction, military expenses, disrupted oil exports, and mounting debt—totaling over $1 T in economic damage.

How former President Nixon's visit to China shifted geopolitics

While Richard Nixon may be best remembered for Watergate and the disintegration of his presidency, his visit to China in 1972 stands as a triumph of his administration. Learn about the president's visit to Beijing (then referred to as Peking), his methods and approach, and the subsequent opening of diplomatic ties with China.

What happened to the Vietnamese refugees who wanted to return home?

Not all who fled Vietnam at the end of the war wanted to be resettled in the US. But those who returned faced an unwelcoming government. This article follows one man's attempt to reunite with his family.

Communist governments across Eastern Europe fell in 1989

In 1989, a series of mostly peaceful uprisings led to the collapse of communist regimes in Eastern Europe. Protests and political shifts in countries like Poland, East Germany and Czechoslovakia marked the end of Soviet dominance in the region.

The ancient succession drama that led to the Sunni-Shia divide

The split that divided Islam into its major branches comes down to succession: after Muhammad's death, Sunnis backed an elected leader, Abu Bakr, while Shia Muslims sided with a member of Muhammad's bloodline, his cousin and son-in-law Ali. That 7th-century disagreement shapes geopolitics today, Ramadan's traditions, and communities worldwide.

The identity of the Tank Man from the Tiananmen Square protests is still unknown

The lone figure standing before military tanks in Beijing is an essential component of this iconic photograph. The protests resulted in the deaths of hundreds of demonstrators, possibly including the man himself. There's also the chance he returned to normal life as a citizen and purposefully concealed his identity.

Watch President Nixon's resignation speech

With impeachment looming, President Richard Nixon gave a televised Oval Office address. Watch this famous address in which Nixon announced his resignation due to the Watergate scandal—becoming the first and only president to resign from office.

Beyond oil, the Iran war has pushed up costs on fertilizer, prescriptions, and mortgages.

Air pollution in war-torn Iran unleashes invisible toxic threats

Burning oil depots and bombed buildings are endangering the health of millions of people during the 2026 attacks. Heavy metals from munitions and other damaged materials are going airborne, but the exact health implications depends on dose, wind currents, and other factors including preexisting health conditions.

Why have gas prices surged nearly 27% since the Iran war began?

Oil passing through the Strait of Hormuz makes up only about 7% of US crude imports. However, crude oil prices account for 51% of the cost of a gallon of gas in the US. US refiners pay the Brent crude futures price, even for domestic drilling.

The Cuban Revolution, from 1953 to 1959, overthrew the dictatorship of Fulgencio Batista and established the first socialist state in the Western Hemisphere.

See photos from the day Havana fell

When news broke that Batista had fled on New Year’s Eve 1958, photographer Burt Glinn rushed from Miami to Havana without an assignment. His iconic images—tanks in Old Havana and tearful reunions—captured a nation celebrating, uncertain, and on the brink of radical change.

OPEC's 1973 embargo sparked the first global energy shock.

The Lunar New Year was nearly lost

In 1949, Mao Zedong's rise to power reshaped Chinese traditions, including Lunar New Year. Mao saw it as outdated and replaced its festivities with political activities. During the Cultural Revolution, traditional customs were banned. After Mao's death in 1976, reforms under Deng Xiaoping revived the holiday.

The Lunar New Year was widely celebrated until Mao Zedong and the Communist Party

In the 1960s, Mao ushered in the Cultural Revolution, an attempt to make China a more modern, industrialized nation. In keeping with this, he banned traditional holiday customs in favor of “revolutionary” actions like chanting Communist Party slogans and engaging in a “self-criticism” ceremony. These changes weren’t very popular and were quickly reversed after Mao’s death.

See a timeline of the Cuban Revolution

A small rebel force toppled Batista through a series of unlikely breaks, including a decisive 1958 ambush in which Castro’s fighters seized an arms train bound for Santa Clara. This timeline charts the revolution’s causes, key turning points, and enduring legacy.

Mapping the Middle East showing Sunni and Shia populations by country

France24's interactive visualization shows where each branch of Islam predominates across the region, from Iran's Shia majority to Saudi Arabia's Sunni dominance. The map helps make Middle Eastern politics (and conflicts) more legible.