“I have said it times and again that takeover of the US embassy by Muslim youth and students was a natural reaction to the harm being done to our people by America.” Imam Khomeini said in the historic message
Washington has a history of animosity with Tehran even when the country was a close ally of the United States before the Islamic Revolution.
The CIA engineered a coup in 1953 that brought down the elected government of Prime Minister Mohammad Mossadegh.
The US also supported the former Iraqi dictator Saddam Hussein in his eight-year war against Iran in the 1980s, providing him with vital intelligence and weapons. The war also marked direct US attacks on Iran's offshore oil facilities in the Persian Gulf and downing of an Iranian Airbus in which 290 people were killed.
Last month, US President Donald Trump unveiled tougher immigration measures against Iranians along with the citizens of 10 other countries. Those measures were purportedly aimed at protecting Americans from possible terrorist attacks.
No Iranian has ever been implicated in any known terrorist attack but Saudi Arabia where 15 of the 19 terrorists involved in the September 11 attacks came from is not in the list.
The developments come less than a year since the inauguration of Trump, who both on his campaign trail and after stepping into the job, would express exceeding animosity towards the Islamic Republic.
The antagonism has seen Trump attack the 2015 nuclear deal between Tehran and world countries, which include Washington itself, and impose several rounds of sanctions against the Iranian missile program.
He has also threatened to “tear up” the international accord. Last month, Trump refused to “certify” Tehran’s compliance with the accord during a speech in which he called Iran a "terrorist nation" and used "Arabian Gulf" to refer to a body of waters historically known as the Persian Gulf.
The insults triggered angry reactions and outcry among the Iranians who took to the streets in massive numbers Saturday to mark the anniversary of the 1979 takeover of the US embassy in Tehran.
Meanwhile, a recently conducted opinion poll shows that 94.5 percent of Iranians do not trust the United States which has held no diplomatic relations with Tehran since the 1979 Islamic Revolution.
The Afkar Iranian Center, a public opinion polling institute, conducted the survey from October 7 to 13 among 863 adults across Iran's provincial capitals, the Tasnim news agency reported.
According to the findings, 60.6% of Iranians do not trust the US “at all,” 21.3% have very low trust in the country, and 12.5% trust Washington “to a certain extent.”