Ancient Macedonian army at 4,500, asserting it was closer to 5,100 horsemen. The army led by Alexander the Great into the Persian Empire included Greek heavy infantry in the form of allied contingents provided by the League of Corinth and hired mercenaries. These infantrymen would have been equipped as hoplites with the traditional hoplite panoply consisting of a thrusting spear ("doru"), bronze-faced "hoplon" shield and body armour. In appearance, they would have been almost identical to the hypaspists. In battle, the Greek hoplites had a less active role than the Macedonian phalangites and hypaspists. At Gaugamela, the Greek infantry formed the defensive rear
Greek units of measurement Greek units of measurement A number of units of measurement were used in Greece to measure length, mass, area, and capacity. In Greece, the metric system has been used since 1836 and was made compulsory in 1922. One "piki" varied from 0.640 m to 0.670 m. 1 "pic" was equal to 1 piki. The "small piki" of Constantinople (also known as the "endeze") was equal to 0.648 m The "large piki" of Constantinople (also known as the "arsin") was equal to 0.669 m A masonry "piki" (also known as the "meimar zire") was equal to 0.750 m. Two types of