About Ulster:

Ulster (Irish: Cúige Uladh) forms one of the four traditional provinces of Ireland. Ulster has a population of just under 2 million people and an area of 24,481 square kilometres (8,952 square miles). Its biggest city, Belfast has an urban area of over half a million inhabitants. The next largest city is Derry, with almost 100,000 residents.

Six of Ulster's nine counties, Antrim (Aontroim), Armagh (Ard Mhacha), Down (An Dún), Fermanagh (Fear Manach), Londonderry (Doire) (formerly known as County Coleraine before being renamed during the Plantation of Ulster) and Tyrone (Tír Eoghain), form Northern Ireland, and remained part of the United Kingdom after the partition of Ireland in 1921. Three Ulster counties, Cavan (An Cabhán), Donegal (Dún na nGall) and Monaghan (Muineachán) form part of the Republic of Ireland.

For more information visit: http://en.wikipedia.org/wiki/Ulster