Farsi (also commonly known as Persian), is the official language of Iran and is spoken widely in both Iran and Afghanistan. Classical Persian had remained basically unchanged until the nineteenth century when, having been elected the capital of Persia in 1787, the dialect of Teheran became dominant and ultimately the basis of Contemporary Standard Persian. Although Persian continues to contain a sizable number of Arabic terms, most borrowed terms have been nativized. There are some 23 million speakers of Farsi representing about 50 percent of Iran's total population; and over 5.5 million Dari Persian speakers in Afghanistan, which represents about 25 percent of that nation's total population. Another 1 million speakers of the Dari Persian dialect currently live in Pakistan. Although the term "Persian" is often used in English, Native Iranians and Afghans normally refer to the Persian language as "Farsi". The the government of Afghanistan uses both "Dari" and "Persian" while the Academy of Persian Language and Literature call their language simply "Persian".