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| 1987, June 2 |
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| Dismantling of the Islamic Republican Party, under orders from Ayatollah Khomeini, who claimed that the party had served its purpose and was no longer needed. | 1 |
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| 1988, July 3 |
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| The U.S. warship Vincennes shot down an Iranian passenger plane over the Persian Gulf, killing all 290 people aboard. | 2 |
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| Dec. 31 |
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| Eighteen political groups filed for official recognition under a law that legalized political parties. Among the parties were the Freedom Movement, led by former prime minister Mehdi Bazargan, and the Mujahidin-i Khalq. | 3 |
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