During the Achaemenid Persian Empire, around 600 BC the Persians first began to use the abacus.

During the 20th century BC the Indo-European Hittites entered the region and gradually established a great empire which was destroyed by invaders in the 12th century.

During the Late Bronze Age circa 2000 BC, they created an empire, the Hittite New Kingdom, which reached its height in the 14th century BC, controlling much of Asia Minor.

During the 1st century BC the Armenians in what had been Urartu established the powerful Armenian kingdom under Tigran who reigned throughout much of eastern Anatolia between the Caspian, Black Sea and Mediterranean.

During the 3rd millennium BC, there developed a very intimate cultural symbiosis between the Sumerians and the Akkadians, which included widespread bilingualism.

During the 3rd millennium BC, there developed a very intimate cultural symbiosis between the Sumerians and the Akkadians, which included widespread bilingualism.

During the next three years, Alexander seemed to renew his attempts to subdue the states of Thessaly, especially Magnesia and Phthiotis, for upon the expiry of the truce, in 364 BC, they again applied to Thebes for protection from him.

During the 4th century BC, there may well have been some 250, 000 – 300, 000 people in Attica.

During the 5th century BC, the Acropolis gained its final shape.

During the third millennium BC, there developed a very intimate cultural symbiosis between the Sumerians and the Akkadians, which included widespread bilingualism.

During the later part of first millennium BC the use of brass spread across a wide geographical area from Britain and Spain in the west to Iran, and India in the east.

During the 6th century BC, the Assyrians poisoned enemy wells with a fungus that would render the enemy delirious.

During the middle of the first millennium BC, Greek culture experienced a gradual change in the perception of female breasts.

During 32 BC, a third of the Senate and both consuls allied with Antony.

During the 7th millennium BC, the northern half of Chad was part of a broad expanse of land, stretching from the Indus River in the east to the Atlantic Ocean in the west, in which ecological conditions favored early human settlement.

During the 1st millennium BC, they were spoken across Europe, in the Iberian Peninsula, from the Atlantic and North Sea coastlines, up the Rhine valley and down the Danube valley to the Black Sea, the Upper Balkan Peninsula, and in Galatia in Asia Minor.

During this time C. Marius had the time to prepare and, in 102 BC, he was ready to meet the Teutons and the Ambrones at the Rhône.

During the early Neolithic ( 4000-3300 BC ) architectural forms are highly regionalised with timber and earth monuments predominating in the east and stone chambered cairns in the west.

During the later Neolithic ( 3300-2500 BC ) massive circular enclosures and the use of grooved ware and Unstan ware pottery emerge.

West Cornwall, around Mount's Bay, was traditionally thought to have been visited by metal traders from the eastern Mediterranean During the first millennium BC trade became more organised, first with the Phoenicians, who settled Gades ( Cadiz ) around 1100 BC, and later with the Greeks, who had settled Massilia ( Marseilles ) and Narbo ( Narbonne ) around 600 BC.

During the period c. 500-450 BC, the tin deposits seem to have become more important, and fortified settlements appear such as at Chun Castle and Kenidjack Castle, to protect both the tin smelters and mines.

During the 39th Olympiad, in 622 or 621 BC, Draco established the legal code with which he is identified.

During the Hellenistic and Roman periods, many of the existing buildings in the area of the Acropolis were repaired, due to damage from age, and occasionally, war.

During the Hellenistic period, the town was of some mercantile importance, although by the first century it had dwindled greatly in size and significance.

During the classical period in Greece ( 6th, 5th and 4th centuries BCE ) and in Hellenistic times, natural philosophy slowly developed into an exciting and contentious field of study.

During Classical and Hellenistic Greece he is usually depicted young and nude, with athleticism, as befits the god of speech and of the gymnastics, or a robe, a formula is set predominantly through the centuries.

During that time, many Greeks settled all over in Pakistan, initiating interaction between the culture of Hellenistic Greece and the region's prevalent Hindu and Buddhist cultures.

During the Hellenistic period, the island was a major naval base for the Ptolemaic Egypt.

During the time period from 90 BC to 30 BC, Yuezhi destroyed the last Hellenistic successor states and, together with the Tocharians, ( to whom they were closely related ) created a Kushan Empire around 30 AD.

During the Hellenistic period, 323 BC-AD 30, Hellenic culture was spread widely, firstly throughout lands conquered by Alexander, and then by the Roman Empire which absorbed much of Greek culture.

During the Hellenistic period, some city-states established public schools.

During the 3rd century BC, in the Hellenistic period, the settlement of Patmos acquired the form of an acropolis with an improved defence through a fortification wall and towers.

During the Hellenistic period, a major trend in Greek-language poetry was to reject epics modelled after Homer.

During the Hellenistic period, which marks the decline of the classical polis, the following cities remained independent: Sparta until 195 BC after the War against Nabis.

During Hellenistic times the cities were clearly distinct from the surrounding region by their practice of Greek culture ; Josephus names several of them in a list of Gentile cities in Judea before the Roman conquest.

During the development of Christian art in the Byzantine empire ( see Byzantine art ), a more abstract aesthetic replaced the naturalism previously established in Hellenistic art.

During the Hellenistic and Roman periods, many different schools of thought developed in the Hellenistic world and then the Greco-Roman world.

During the Abbasid caliphate a number of thinkers and scientists, some of them heterodox Muslims or non-Muslims, played a role in transmitting Greek, Hellenistic, Indian and other pre-Islamic knowledge to the Christian West.

The Greek term carried no pejorative connotation during the Archaic and early Classical periods but was clearly a bad word to Plato, and on account of the decisive influence of political philosophy its negative connotations only increased down into the Hellenistic period, becoming synonymous with " Authenteo "-another term which carried authoritarian connotations around the turn of the first century A. D. During the seventh and sixth centuries BC, tyranny was often looked upon as an intermediate stage between narrow oligarchy and more democratic forms of polity.

During the development of Christian art in the Byzantine empire ( see Byzantine art ), a more abstract aesthetic replaced the naturalism previously established in Hellenistic art.

During the Hellenistic period and the Roman Empire, exotic mystery religions became widespread, not only in Greece, but all across the empire.

During the two centuries of their rule, the Indo-Greek kings combined the Greek and Indian languages and symbols, as seen on their coins, and blended ancient Greek, Hindu and Buddhist religious practices, as seen in the archaeological remains of their cities and in the indications of their support of Buddhism, pointing to a rich fusion of Indian and Hellenistic influences.

During the late Hellenistic Period, Al Karak became an important town taking its name from the Aramaic word for town, Kharkha.

During the Hellenistic period it was an anchorage town, ruled by Seleucids and renamed Apollonia, as the Greeks identified Reshef with Apollo.

During the Hellenistic period, " Nysa " was personified as Dionysus ' nursemaid, and she was said to be buried at the town of Scythopolis ( Beit She ' an ) in Palestine, which claimed Dionysus as its founder.