A weapon evolved from daggers in the bronze age, becoming longer and made with different kinds of grips. It was used for slashing and thrusting and has a broader blade than a rapier, plus a flanged hilt. Single-edged swords are rare and they are more often called sabers or falchions. Sword classifications are based on the form of the hilt and the shoulder. It was probably developed in Hungary and then spread to the Aegean, where it is found in shaft graves at Mycenae c 1650 BC, and the rest of Europe and western Asia. From then until the development of firearms it remained one of the main weapons of war.