stone spear heads from as early as 300,000 BP, and by 250,000 years ago, wooden spears were made with fire-hardened points. From circa 200,000 BCE onwards, Middle Paleolithic humans began to make complex stone blades with flaked edges which were used as spear heads. These stone heads could be fixed to the spear shaft by gum or resin or by bindings made of animal sinew, leather strips or vegetable matter. During this period, a clear difference remained between spears designed to be thrown and those designed to be used in hand-to-hand combat. By the Magdalenian period (c. 15,000–9500 BCE), spear-throwers similar to the later atlatl were in use. Military Europe Classical antiquity Ancient Greeks The spear is the main weapon of the warriors of Homer's Iliad. The use of both a single thrusting spear and two throwing spears are mentioned. It has been suggested that two styles of combat are being described; an early style, with thrusting spears, dating to the Mycenaean period in which the Iliad is set, and, anachronistically, a later style, with throwing spears, from Homer's own Archaic period. In the 7th century BCE, the Greeks evolved a new close-order infantry formation, the phalanx. The key to this formation was the hoplite, who was equipped with a large, circular, bronze-faced shield (aspis) and a spear with an iron head and bronze butt-spike (doru). The hoplite phalanx dominated warfare among the Greek City States from the 7th into the 4th century BCE. The 4th century saw major changes. One was the greater use of peltasts, light infantry armed with spear and javelins. The other was the development of the sarissa, a two-handed pike in length, by the Macedonians under Phillip of Macedon and Alexander the Great. The pike phalanx, supported by peltasts and cavalry, became the dominant mode of warfare among the Greeks from the late 4th century onward until Greek military systems were supplanted by the Roman legions. Ancient Romans In the pre-Marian Roman armies, the first two lines of battle, the hastati and principes, often fought with a sword called a gladius and pila, heavy javelins that were specifically designed to be thrown at an enemy to pierce and foul a target's shield. Originally the principes were armed with a short spear called a hasta, but these gradually fell out of use, eventually being replaced by the gladius. The third line, the triarii, continued to use