Mosul is capital of the Ninawa Governorate, some 400 km (250 miles) northwest of Baghdad. The original city stands on the west bank of the Tigris River, opposite the ancient city of Nineveh on the east bank, but the metropolitan area has now grown to encompass substantial areas on both banks, with five bridges linking the two sides. Although for many years it was considered to be a Kurdish city, the majority of its population is now Arab and it does not form part of the area controlled by the Kurdistan Regional Government. It is Iraq's second largest city after Baghdad. The fabric Muslin, long manufactured here, is named after this city. Another historically important product of the area is Mosul marble. In 1987, the city's population was 664,221 people; the 2002 population estimate was 1,740,000, and by 2008 was estimated to be 1,800,000. The city is a historic center for the Nestorian Christianity of the Assyrians, containing the tombs of several Old Testament prophets such as Jonah and Nahum.