Invention is a creation skill, where you use almost every other skill and a great number of items to train. You can do many activities using this skill, such as augmenting items for perks, and making new devices.
Tar Heel is the nickname for a native or resident of North Carolina as well as for the state itself, which is known as the Tar Heel State.
Tartar (noun). a reddish crust or sediment in wine casks, consisting essentially of crude cream of tartar, and used in marking pure cream of tartar, tartaric acid, potassium carbonate, black flux, etc., and, in dyeing, as a mordant for woolen goods; -- called also argol, wine stone, etc.