Why is it called Scotland?
Scotia
Scotia is a Latin placename derived from Scoti, a Latin name for the Gaels,[1] first attested in the late 3rd century. [1]). From the 9th century, its meaning gradually shifted, so that it came to mean only the part of Britain lying north of the Firth of Forth: the Kingdom of Alba or Scotland.[1] By the later Middle Ages it had become the fixed Latin term for what in English is called Scotland.
The Romans referred to Ireland as "Scotia" around 500 A.D.