Earlier quoted context omitted.
Man, you just triggered me. This was also me in school. I even have a huge interest in history, but I remember my first history exam on World War 1. I was ready to answer questions on its causes, the people, how industrial war changed the nature of fighting, the new countries that formed after the war... First Question: What was the date the Serbian nationalist Gavrillo Princip assassinated Archduke Franz Ferdinand.…
Holy crap - I have read the Hobbit many times (and LoTR a few less) and I would never have taken the time to commit 13-character names to memory - most of them simply were not that memorable.
The rhyming sets are a bit of a crutch, at least (Fili + Kili, Óin + Glóin, Bifur + Bofur + Bombur, etc). But you're right - most of the dwarves are individually forgettable. Only two are substantially characterized - Thorin the leader, and Bombur the comically fat.