Sicily and encouraged the growth of smallholdings, undermining the dominance of the latifundia. The Arabs further improved irrigation systems. The language spoken in Sicily under Arab rule was Siculo-Arabic and Arabic influence is still present in some Sicilian words today. Although the language is extinct in Sicily, it has developed into what is now the Maltese language on the islands of Malta today. A description of Palermo was given by Ibn Hawqal, an Arab merchant who visited Sicily in 950. A walled suburb, called the Al-Kasr (the palace), is the centre of Palermo to this day, with the great Friday mosque
Capital city meaning "head". In several English-speaking states, the terms county town and county seat are also used in lower subdivisions. In some unitary states, subnational capitals may be known as "administrative centres". The capital is often the largest city of its constituent, though not always. Historically, the major economic centre of a state or region often becomes the focal point of political power, and becomes a capital through conquest or federation. (The modern capital city has, however, not always existed: in medieval Western Europe, an itinerant (wandering) government was common.) Examples are Ancient Babylon, Abbasid Baghdad, Ancient Athens, Rome, Constantinople, Chang'an,