On Feb 11, 1979, Iran's army declared its neutrality, paving the way for the fall of Shah Mohammad Reza Pahlavi, the United States' closest ally in the Middle East.
Chants of "Death to America" and "Death to Israel" can commonly be heard in Iranian demonstrations of nationalist fervor, with this one being no exception.
"Iran continues to seek nuclear weapons to intimidate people all around the globe and ballistic missiles to use as delivery systems".
Ballistic missile capabilities were on display during the main march, including the Qadr F, a ground-to-ground missile with a 1,950-km (1,220-mile) range, Tasnim news agency said.
In a speech at Tehran's Azadi (Freedom) square, Rouhani said US efforts to isolate Iran would fail.
An Iranian man marches with a portrait of the country's Supreme Leader Ali Khamenei (L) alongside a woman holding up another of Islamic Revolution founder Ayatollah Ruhollah Khomeini (R) during a ceremony celebrating the 40th anniversary of Islamic Revolution in the capital Tehran on February 11, 2019.
State TV showed a cartoon of the Shah being thrown into the "dustbin of history", wearing clothes in US colours and holding Iranian newspapers headlined "The Shah has left!"
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She escaped with only a mild case of hypothermia and "a few minor abrasions", according to local journalist Bernadette Wilks. It was raining last night, this little baby was washed down from up on the roadway.
"40 years of corruption".
The leaders spoke at a rally marking 40 years since the Islamic revolution, a political natural disaster that ended millennia of monarchy and still reverberates around the region.
Journalist Mikey Kay recalled in this vein that Bolton has spoken at least eight times at rallies organised by MEK (Mojahedin-e Khalq), an Iranian dissident group which calls for regime change in Iran and is known to pay up to $50,000 per speech.
"The long-suffering Iranian people deserve a much brighter future", he added.
Iranians are facing mounting economic hardships which many blame on the country's clerical leaders.
The message was issued as the country celebrated the 40th anniversary of their Islamic revolution.
Reuters could not independently verify the pictures.
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Osaka a diffusé un gazouillis lundi dans lequel elle dit qu'elle "ne travaillera plus avec Sascha ". " Je ne travaillerai plus avec Sascha".
This year's celebrations come amid heightened tensions with the United States, which last year withdrew from the 2015 nuclear agreement between Tehran and world powers and reimposed tough sanctions on the Iranian economy.
"The presence of people today on the streets all over Islamic Iran. means that the enemy will never reach its evil objectives", a defiant President Hassan Rouhani told those thronging Tehran's Azadi (Freedom) Square, decrying a "conspiracy" involving Washington.
Although the Iranian government has attempted to establish financial mechanisms that would facilitate its trade relations with European powers, its ability to trade internationally has been badly affected by renewed U.S. sanctions.
Rouhani also promised the crowds that Iran would overcome the economic hardship amid the country's spiraling economy and the newly imposed US sanctions.
Iranian proxies in the region include the Lebanon-based Hezbollah, several terror groups in Gaza, and Shiite militias in Iraq.
"The US should know that we would raze Tel Aviv and Haifa to the ground in the event of a military attack on us", General Yadollah Javani, head of the guard's political bureau, was quoted as saying.
Israeli Prime Minister Benjamin Netanyahu dismissed the threat.
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The free flow of people and goods across the frontier has been an important measure upholding Northern Ireland's peace deal. Speaking to BBC radio Monday morning, Johnson said: "The argument is now about how to get out of the backstop".
"If this regime makes the bad mistake of trying to destroy Tel Aviv and Haifa, it will not succeed", the Israeli leader said. "They should take this into account", Netanyahu said in a warning to his country's archfoe.