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This made the country a constituitional monarchy
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The first Majilis, aka parliament, was convened
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This divided Persia into different spheres of influence.
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The British discovered oil in Khuzestan, which renewed interest in Persia by the British Empire
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After the Russian Revolution and Iran's withdrawal, the British tried to establish protectorate in Iran, but was unsuccessful.
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A military coup establsihed Reza Khan, a Persian officer of the Persian Cossack Brigade, as the dominant figure.
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The Consitutionalist movement of Gilan and lack of a leader cause instablity within the Qajar government. This resulted to the rise to power of Reza Shah Pahlavi.
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After being the prime minister for a few years, he was made king of Iran and established the Pahlavi dynasty.
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Bazaaris and villagers rise up in rebellion at the Imam Reza shrine in Mashhad.
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Reza Shah's son, Mohammad Reza Shah Pahlavi, came to power during World War II after the British and Indian forces from Iraq and Soviet forces from the north occupied Iran.
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Reza Shah was forced to abdicate, after 16 years, by the Anglo-Soviet Invasion of Iran.
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The Tehran Declaration was drawn up, guaranteeing post-war independence and boundaries of Iran.
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Soviet troops withdraw from Iran, after receiving a promise of oil concessions.
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Prime Minister Mohammad Mosaddeqm received the vote, requiring to nationalize the British oil-industry.
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Mossadegh was briefly removed from power.
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Mossadegh is reapponted to power, due to popular uprising in support of the premier, and he forced the Shah into exile after a failed military coup by Imperial Guard Colonel Nematollah Nassiri.
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A successful coup was headed by retired army general Fazlollah Zahedi, organized by the American CIA with support of the British M16.
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Martial law ended after 16 years and Iran became closer to the West, joining the Baghdad Pact and receiving military and economic aid from the U.S.
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Iran initiated a series of economic, social, agrarian and administrative reforms to modernize the country.
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Several days of mass rioting took place in support of Ayatollah Ruhollah Khomeini.
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Iran abrogates the 1937 accord and demands a renegotiation.
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Iran forces seized control three islands in Persian Gulf:.
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Shah returns oil industry to national control
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After the war, Iran did not join the Arab oil embargo against the west and Israel.
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A border dispute between Iran and Iraq was resolved with the signing of the Algiers Accord.
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This is a revolution that changed Iran from an absolute monarchy under Shah Mohammad Reza Pahlavi to an Islamic Republic under Ayatollah Ruhollah Khomeini.
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Khomeini serves as Supreme Leader of Iran
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Iran officially becomes an Islamic Republic.
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The Iranian students seize the US embassy personnel and label it as "den of spies"
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The Iraqi army invades Iran at Khuzestan
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Iranian forces push back the Iraqi army to Iraq
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Khomeini accepts a truce mediated by the UN
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Government systematically kills thousands of political prisoners in Iran
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Khamenei comes to power after Khomeini's death
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Iran remains neutral through this war
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Rafsanjani is succeeded by Mohammad Khatami
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Massive anti-government protests had erupted onto the streets of Tehran
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Khatami re-elected
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Anti-government protests by thousands of students takes place in Tehran
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Mahmoud Ahmadinejad, mayor of Tehran, becomes the sixth president of Iran
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Iran cites the Fatwa an official statement at the meeting of the International Atomic Energy Agency in Vienna
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Human Rights protests break out
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Mahmoud Ahmadinejad's is re-elected