According to AncestryDNA I am 99% Irish and 1% Sardinian at the moment, though I have been as high as 100% Irish. (You only send them a sample once, but they seem to review the ethnic implications regularly.)
It goes straight on to the reading list, but will also stand and wait as a birthday present for the family (who share my descent) and, come to think of it for the extended Riley clan who are such a feature of life in the 'Wood.
“Like the Jews before them, the Irish enshrined literacy as their central religious act.”
Did I ever tell I was 2% Jewish back on my very first AncestryDNA evaluation?