"Your tutor reports that you dislike History, my son. Why?"
Faramir flushed. "It is dull!" He recited in a sing-song voice:
"2002: Minas Ithil falls,
2043: Eärnur..."
"True, but what happened in 2040?"
A puzzled frown.
"That is when Fram of the Éothéod slew Scatha the Worm."
"A dragon?" Faramir gasped. "He slew a dragon? How? Where? Who was he? What does Éothéod mean? Why call it a worm?"
"You will find your answers in this book about our valiant allies, the Rohirrim..." He stood to leave. "But, since you despise history..."
"May I read it, Father? Please?"
Denethor smiled.
***
"We in the house of Denethor know much ancient lore by long tradition..."
The Two Towers, LoTR Book 4, Ch 4, Of Herbs and Stewed Rabbit
[Note that the date of this event was invented for the drabble:]
"... the songs of Rohan ... tell that [Fram] slew Scatha, the great dragon of Ered Mithrin, and the land had peace from the long-worms afterwards. Thus Fram won great wealth, but was at feud with the Dwarves, who claimed the hoard of Scatha."
The Return of the King, LoTR Appendix A, Annals of the Kings and Rulers: The House of Eorl