There are many variations on this theme. I'll probably get into them when I have time. Again, the page is under construction. The Curved Knife Curved knives, sharpened on the outer edge, provide improved slicing for jobs such as skinning. They work well with a cutting board.
Most people find an extreme curve more difficult to control for general use.
They do not stab as well. These are also very old. The earliest flint knives were of this pattern, and small sharply curved knives are found in the graves of Danish Viking age women. Curved knives sharpened on the inside of the curve were also common in most traditional cultures. In larger sizes they became sickles and scythes.