Dr. Lisa Bitel walks me through the ancient Irish Epic, The Tain. This book is also called "the Irish Iliad". I'd recommend reading this one AFTER listening to the episode.
The Tain:
https://www.amazon.com/Tain-Translated-Irish-Epic-Cuailnge/dp/0192803735
More Info about Dr. Bitel:
https://dornsife.usc.edu/cf/faculty-and-staff/faculty.cfm?pid=1003109
A Poem:
The Surfing Irishman
A nadb named dabd did misbehadb
He stole another surfers wadb
You’d think that he could be forgadb
But poor old Dadb is in his gradb.