A spear is a weapon made by attaching a sharp blade to a stick. In battle this allowed early man to attack his foes from a few feet away. This was a major advantage. A man armed with a spear could defeat many attacking warriors with getting hurt himself. Bronze was made obsolete when ironworking was developed. From the spear, the pike was developed. The pike was a longer spear with different iron tips for a different situation. Pikes and spears were commonly used as a defense against charging cavalry.