The primary contemporary source describing the history, layout, and buildings of Firozkoh is the Tabaqāt-i Nāsirī, written by Minhaj al-Siraj Juzjani.[4] Juzjani lived in the city during his youth, but left in 1215 and did not write the work until 1260, while living in Delhi.[2] While Juzjani is generally considered a reliable chronicler, like any source, his words must be put into context and considered a partial perspective on the city and its inhabitants.[3][4]