Nuclear program of Iran
U.S. President Obama reportedly sent a letter dated 20 April 2010 to President Lula of Brazil, in which he outlined a proposal of fuel swap. While expressing skepticism that the Iranians would now be willing to accept such a deal, having provided "no credible explanation" for the previous deal's rejection, President Obama wrote "For us, Iran’s agreement to transfer 1,200 kg of Iran’s low enriched uranium (LEU) out of the country would build confidence and reduce regional tensions by substantially reducing Iran’s LEU stockpile." Turkish Prime Minister Recep Tayyip Erdogan received a similar letter. A senior U.S. official told the "Washington Post" that the letter was a response to Iran's desire to ship out its uranium piecemeal, rather than in a single batch, and that during "multiple conversations" U.S. officials made clear that Iran should also cease 20% enrichment; however, the official stated "there was no president-to-president letter laying out those broader concerns".
First inauguration of Hassan Rouhani
The inauguration of Hassan Rouhani as the 7th President of Iran took place on two rounds, first on Saturday 3 August 2013 whereby he received his presidential precept from Supreme Leader Ali Khamenei and entered to the Sa'dabad Palace, official residence of the president in a private ceremony. The second was on the next day with sworn in for the office in the Parliament of Iran. This marked the commencement of the four-year term of Hassan Rouhani as president and his vice president. The event was awaited with some expectation, since for the first time foreign guests participated in the ceremony. The oath of office was administered by Chief Justice, Sadeq Larijani.