answers: 1935
context: campaign of conquest, and following the capture of Tabriz in July 1501, he enthroned himself as the Shāh of Azerbaijan, minted coins in this name, and proclaimed Shi'ism the official religion of his domain. Although initially the masters of Azerbaijan and southern Dagestan only, the Safavids had, in fact, won the struggle for power in Persia which had been going on for nearly a century between various dynasties and political forces following the fragmentation of the Kara Koyunlu and the Aq Qoyunlu. A year after his victory in Tabriz, Ismāil proclaimed most of Persia as his domain, and quickly conquered </s> it culminated in the Battle of Krtsanisi, which resulted in the capture, and sack of Tbilisi, as well as the effective resubjugation of Georgia into Iran. Upon his return from his successful campaign in Tbilisi and in effective control over Georgia, together with some 15,000 Georgian captives that were moved back to mainland Iran, Agha Mohammad was formally crowned Shah in 1796 in the Mughan plain, just like his predecessor Nader Shah was about sixty years earlier. Agha Mohammad Shah was later assassinated while preparing a second expedition against Georgia in 1797 in Shusha (nowadays part of the Republic of </s> Name of Iran In the Western world, Persia (or one of its cognates) was historically the common name for Iran. On the Nowruz of 1935, Reza Shah Pahlavi asked foreign delegates to use the term Iran, the endonym of the country, in formal correspondence. Since then, in the Western World, the use of the word "Iran" has become more common. This also changed the usage of the terms for Iranian nationality, and the common adjective for citizens of Iran changed from "Persian" to "Iranian". In 1959, the government of Mohammad Reza Shah Pahlavi, Reza Shah Pahlavi's son, announced that both
question: when did persia change its name to iran