A Bowie Knife is a fighting knife that was created by James Black for Jim Bowie in the 19th century.
I was not aware that James Black created the knife. I always though Bowie created it. 
Jim Bowie designed the knife and James black made the improvements.
So it was a collaborative effort to create the knife. I feel that the Bowie knife is one of the most iconic knifes in history.
addition to various knife manufacturing companies there are hundreds of custom knife makers producing Bowies and variations.
Historical complications.
The early history of the Bowie knife is complicated by murky definitions, limited supporting documentation, and conflicting claims. The Bowie knife is not well defined. By the mid-20th century most would include some combination of blade length and blade shape. In the mid-19th century, when the popularity of the knife was at its peak, the term was applied to a wide range of blades. Absent a consensus definition,
Bowie knife
A Bowie knife ( ) is a pattern of fixed-blade fighting knife created by James Black in the early 19th century for Jim Bowie, who had become famous for his use of a large knife at a duel known as the Sandbar Fight.
Since the first incarnation, the Bowie knife has come to incorporate several recognizable and characteristic design features, although in common usage the term refers to any large sheath knife with a crossguard and a clip point. The knife pattern is still popular with collectors; in