Cairn Terriers are one of 4 breeds to have originated from the 19th C. Scotch Terrier; Cairns, Scottish Terriers, West Highland
White Terriers, and Skye Terriers. Which breed emerged first is equivocal.
ca. 1820
The names "Scotch Terrier" and "Skye Terrier" were used interchangeably. Cairns are believed to have evolved
from the Highland terriers living on the Isle of Skye.
