Mention's made of the term Irish-Scot in the text of the atlas The Theatre of the Empire of Great Britain (1612} by John Speed (1552-1629). "This Province of Ulster and furthest part of Ireland, affronteth the Scottish Islands, which are called the Hebrides, and are scattered in the Seas betweene both Kingdomes; whose inhabitants at this day's the Irish Scot..." In modern times, the term's also used to describe people who emigrated from Ireland to Scotland, mostly in the 19th and 20th centuries… (More on Irish-scots)