Five conditions determine whether revolutions succeed. For the first time since 1979, Iran meets nearly all of them.

ABC News takes a look back 36 years to the Iranian Revolution. — -- On Feb. 11 each year, Iranians take to the streets in celebration of the anniversary of the Islamic Revolution of 1979. The ...

Videos shared by activists on social media purported to show protesters chanting against Iran's government around bonfires as ...

"It's an event that ranks among the most seminal in history," said Tunku Varadarajan in The Wall Street Journal, and yet the Iranian Revolution of 1978–79 left behind questions that have "tormented ...

A desert-like patch of sand and scrawny trees in the largest cemetery in Iran’s capital has been the final resting place for decades for some of the thousands killed in the mass executions that ...

As protests continue to challenge Iran’s clerical establishment, a 1979 opinion article from the New York Times has ...

Before 1979, Iranian women wore miniskirts, earned advanced degrees, ran businesses, and lived lives that looked remarkably like their Western peers. Then came the Islamic Revolution—and everything ...

FILE - In this photo released by an official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei speaks in a ceremony meeting a group of officials, in Tehran, ...