How did the term Scotch-Irish come about in the description of the Irish Immigrants?

Answer:
The 'Scotch-Irish' are the Protestants planted in North Ireland by the British in the early 1600s. They were of Scottish Lowland origin.
The term came about in the U.S.to distinguish them from the native Catholic Irish.
First answer by 2k3r021. Last edit by 2k3r021. Contributor trust: 236 [recommend contributor recommended]. Question popularity: 1 [recommend question].