It was St. Patrick who used the example of the shamrock to explain the Christian Trinity to King Laoghaire and an assembled crowd at Tara.
The shamrock was what St. Patrick compared the Christian Trinity to.
and um oh i guess i like a variety of things um lots of fiction uh type books um right now i'm occasionally reading  on a book about uh the Mardi Gras in New Orleans and it's history that's fairly interesting