Analysis of information sources in references of the Wikipedia article "Afeganistão" in Portuguese language version.
From among the languages of Pashto, Dari, Uzbeki, Turkmani, Baluchi, Pashai, Nuristani, Pamiri (alsana), Arab and other languages spoken in the country, Pashto and Dari are the official languages of the state.
In pre-Islamic and early Islamic times, the term "Khurassan" frequently had a much wider denotation, covering also parts of what are now Soviet Central Asia and Afghanistan; early Islamic usage often regarded everywhere east of western Persia, sc. Djibal or what was subsequently termed 'Irak 'Adjami, as being included in a vast and ill-defined region of Khurasan, which might even extend to the Indus Valley and Sind.'
