In 1935, Reza Shah requested the international community to refer to the country by its native name, <answer>Iran</answer>. As the New York Times explained at the time, "At the suggestion of the Persian Legation in Berlin, the Tehran government, on the Persian New Year, Nowruz, March 21, 1935, substituted <answer>Iran</answer> for Persia as the official name of the country." Opposition to the name change led to the reversal of the decision, and Professor Ehsan Yarshater, editor of Encyclopædia <answer>Iran</answer>ica, propagated a move to use Persia and <answer>Iran</answer> interchangeably. Today, both Persia and <answer>Iran</answer> are used in cultural contexts; although, <answer>Iran</answer> is the name used officially in political contexts.
Which name is officially used politically?
Iran