Two nuclear negotiators lauded the July 14 deal reached with the five permanent members of the UN Security Council and Germany in Vienna as "exceptional" and "unprecedented" in Iranian and world history.
"The agreement is, with no doubt, exceptional and historic," Sirous Nasseri was quoted by IRNA as saying on Tuesday.
"Even the P5+1 (the US, Britain, France, Russia, China and Germany) called it historic…. But it is more so for Iran because it is unheard of in its history that such a significant and momentous issue becomes the subject of intensive negotiations producing such honorable and successful results."
He said the Islamic Republic managed to compel the other side to make concessions to reach the deal.
"This is an exception because it is without precedent in history that a powerful country like the United States has recognized the enrichment program of a country like Iran, which opposes its policies. This is astonishing."
He chided criticisms by opponents of the accord, saying their efforts to portray the agreement as a "bitter" defeat are due to either their "political bias" or "ignorance".
Another former member of the negotiating team, Mohammad Saeedi, echoed Nasseri's view of the accord, saying, "The agreement is unprecedented in our relations with the West over the past 100 years."
Saeedi said despite refusal by western countries to negotiate with Iran after the 1979 Islamic Revolution, they were dragged to the negotiating table by Tehran's nuclear achievements and access to latest atomic knowhow.
The success is the result of the "rational approach" adopted by the negotiating team, Saeedi said.
"We used prudence to reach a level that could preserve all aspects of our nuclear industry."
"Victory against the five veto-wielding countries is no small event," he added.
