“ The size and number of knots in hair, tied around neck, or hanging from belt could signify family, importance, worship, guild affiliations. Being able to translate the meaning of the size and placement of knots can give you a a large understanding of who somebody is.
May be used in a more barbaric society. Where in cities peoples clothes and crests show who they are, barbarians have no need for this so use knots.”
“ A traditionalist nation that scorns ranged combat is famed for its innovations in body armor and shields capable of blocking all kinds of projectiles and withstanding explosions. The purpose of this armor is to allow one to get close enough to an enemy for melee combat. Conversely it is also famed for its innovations in melee weapons capable of destroying all kinds of body armor and shields to effectively defeat its enemies.”
“ With regard to the plot 'Sleeping Mines of Elathon':
You manage to get the water wheel in the mine working which operates a pump to clear the flooded lower levels. As you explore the dank tunnels of the lower galleries, you can hear the creaking of the wheel above. You enter a low-ceilinged passage and are crawling on your backs, when the creaking stops. The water starts seeping wetly around the back of your head...”