"It started in 1957," he says, "and ironically, it is a creation of the United States. The U.S. provided Iran with its first research reactor — a nuclear reactor, a 5-megawatt nuclear reactor that is still functioning and still operational in Tehran."

The U.S. built that nuclear reactor in 1967 on the campus of Tehran University. It also provided Iran with fuel for that reactor — weapons-grade enriched uranium.

http://www.npr.org/sections/parallels/2015/09/18/440567960/born-in-the-u-s-a-how-america-created-irans-nuclear-program

Read the story and check for yourself.

Born In The USA: How America Created Iran's Nuclear Program

September 18, 201512:00 PM ET

Steve Inskeep

The Christian Science Monitor:

http://www.csmonitor.com/USA/Foreign-Policy/2009/1002/p04s01-usfp.html

It was Uncle Sam who first gave Iran nuclear equipment   
  
"A nuclear reactor was sold to Iran as part of President Eisenhower's "Atoms for Peace" program. But even then the US had concerns about what might happen if the Shah fell to 'domestic dissidents."

By Peter Grier, Staff writer of The Christian Science Monitor October 2, 2009

Have the Congress people who made the Obama Iran deal political read any history or studied the Middle East reasons for distrusting the United States?

From the NPR article link above:

"President Dwight D. Eisenhower delivered his Atoms for Peace speech at the U.N. General Assembly in 1953. As part of this program, the U.S. helped Iran and other countries develop civilian nuclear technology based on the belief this would keep them from seeking nuclear weapons on their own."

Try Wikipedia for some even if not perfect facts:

https://en.wikipedia.org/wiki/Timeline_of_the_nuclear_program_of_Iran