What are the key differences between bourbon whisky and whiskey?

Bourbon whiskey is a type of whiskey that is made primarily from corn and aged in new charred oak barrels. It must be made in the United States to be called bourbon. Whiskey, on the other hand, is a broad category that includes various types of distilled spirits made from fermented grain MASH and aged in barrels. The key differences between bourbon whiskey and whiskey lie in their ingredients, production methods, and geographical restrictions.