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Case file

Iran hostage crisis

The Iran hostage crisis began in 1979 when the U.S. embassy in Tehran was seized and 52 Americans held for 444 days. In 2010 the opening said the embassy was taken over by "a group of Islamist students and militants... in support of the Iranian Revolution." Today's opening is built around an infobox of belligerents and commanders and does not carry this description; militant survives 3 times elsewhere in the article. A reader today does not learn, from the opening, that the people who seized the embassy were described as Islamist students and militants.
Read line by line and written up by hand.
Machine-checked against the full current article on 2026-08-01. “militant” appeared 2 times in this article's opening at its peak. Today the opening has none; the body has 3.
We saved snapshots of this article over twenty years; you are reading the 2010 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2010

Iran hostage crisis was a diplomatic crisis between Iran and the United States . 52 Americans were held hostage for 444 days from November 4, 1979 to January 20, 1981, after a group of Islamist students and militants took over the American Embassy in support of the Iranian Revolution . Sixty-six Americans were taken captive when Iranian militants seized the U.S. Embassy in Tehran on Nov. 4, 1979, including three who were at the Iranian Foreign Ministry. Six more Americans escaped and of the 66 who were taken hostage, 13 were released on Nov. 19 and 20, 1979; one was released on July 11, 1980, and the remaining 52 were released on Jan. 20, 1981.1 The episode reached a climax when, after failed attempts to negotiate a release, the United States military attempted a rescue operation, Operation Eagle Claw , on April 24, 1980, which resulted in a failed mission, the destruction of two aircraft and the deaths of eight American servicemen and one Iranian civilian.2 It ended with the signing of the Algiers Accords in Algeria on January 19, 1981.3 The hostages were formally released into United States custody the following day, just minutes after the new American president Ronald Reagan was sworn in.4 The crisis has been described as an entanglement of "vengeance and mutual incomprehension".5 In Iran, despite freezing of all Iranian assets held in the United States (Executive Order 12170), the hostage taking was widely seen as a blow against the U.S, and its influence in Iran, its perceived attempts to undermine the Iranian Revolution, and its long-standing support of the recently overthrown government of the Shah of Iran, Mohammad Reza Pahlavi .6 The Shah had been restored to power in a 1953 coup against a democratically-elected nationalist Iranian government organized by the CIA at the American embassy and had recently been allowed into the United States for medical treatment.7 In the United States, the hostage-taking was seen as an outrage violating a centuries-old principle of international law granting diplomats immunity from arrest and diplomatic compounds sovereignty in their embassies.8 The crisis has also been described as the "pivotal episode" in the history of Iran – United States relations .9 In the U.S., some political analysts believe the crisis was a major reason for U.S. President Jimmy Carter 's defeat in the November 1980 presidential election .10 In Iran, the crisis strengthened the prestige of the Ayatollah Khomeini and the political power of those who supported theocracy and opposed any normalization of relations with the West.11 The crisis also marked the beginning of U.S. legal action, or economic sanctions against Iran , that further weakened economic ties between Iran and the United States.12 The Iranians: Persia, Islam and the SouProxy-Connection: keep-alive Cache-Control: max-age=0 of a Nation .13

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 369015621.
Today
“militant” appeared 2 times in this article's opening at its peak. Today the opening has none; the body has 3. Read the current article and compare.
2005201020152020Oct '232025
militant020000
terror003111
islamist010000
jihad000001
hostage281381014
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined between 2005 and 6 October 2023.

Then

a 444-day period during which the new government of iran after the iranian revolution held hostage 66 diplomats

Now

bout the siege of the american embassy in tehran

Sections that no longer exist

Present on 6 October 2023, absent today. A heading can vanish because the section was deleted or because it was renamed or merged, and we have not separated those here, so treat this as a list of what to check rather than a verdict.

  • 1953 coup d'état 1,728 characters
  • Carter administration 2,516 characters
  • First attempt 699 characters
  • Second attempt 2,751 characters
  • Takeover 2,584 characters
  • Motivations 4,409 characters
  • Documents discovered inside the American embassy 1,188 characters
  • Canadian rescue of hostages 761 characters
  • First rescue attempt 5,090 characters
  • Release 1,488 characters
Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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