Common language and culture defines a state just as much as borders, cities, and government do. Each major nonhuman race speaks its own language, and humans all share a common language except for certain accents and fluctuations. The oldest languages spoken are nonhuman in origin. Draconic, the speech of dragons, may be the oldest of all. Gnome, Elven, and Dwarven are also ancient tongues. Almost all trade is conducted in Common, and greeting a stranger in anything other than Common is considered rude.