The Region was originally known as Um (Sak.'Sunken Vale'). This ancient term is used both for the whole natural harbour area, properly termed ' Nen Umbar', and for the City at the far eastern point of the harbour. The city has a population of around 100,000, and is the principal trading centre of North-Western Middle-Earth, bigger even than the Gondorian cities in terms of its trade. Umbar is situated around two natural harbours, one in the north and one in the south. Originally founded as a small trading station by Baian of Numenor of the Guild of Venturers in 8th century SA.