Who invented knives?

Knives have been around since the Stone Age when early humans began shaping rocks into sharp tools for cutting and hunting. The first knives were made from flint and obsidian, which were both easily chipped and shaped. Later, knives were made from bronze and iron, which were more durable and could be sharpened to a finer edge. By the Middle Ages, knives had become an essential tool for both everyday use and warfare.