At the time of partition, English had become the first language of the vast majority in Northern Ireland. It had small elderly Irish-speaking populations in the Sperrin Mountains as well as in the northern Glens of Antrim and Rathlin Island. There were also pockets of Irish speakers in the southernmost part of County Armagh. All of these Irish speakers were bilingual and chose to speak English to their children, and thus these areas of Northern Ireland are now entirely English-speaking. However, in the 2000s a Gaeltacht Quarter was established in Belfast to drive inward investment as a response to a notable level of public interest in learning Irish and the expansion of Irish-medium education (predominantly attended by children whose home language is English) since the 1970s. In recent decades, some Nationalists in Northern Ireland have used it as a means of promoting an Irish identity. However, the amount of interest from Unionists remains low, particularly since the 1960s. About 165,000 people in Northern Ireland have some knowledge of Irish. Ability varies; 64,847 people stated they could understand, speak, read and write Irish in the 2011 UK census, the majority of whom have learnt it as a second language. Otherwise, except for place names and folk music, English is effectively the sole language of Northern Ireland. The Good Friday Agreement specifically acknowledges the position both of Irish and of Ulster Scots in the Republic of Ireland and in Northern Ireland.