Arrian in the context of "Tiridates I of Parthia"

Alexander the Great (356 – 323 BC), a king of ancient Macedon, created one of the largest empires in history by waging an extensive military campaign throughout Asia. Alexander was groomed for rulership from an early age and acceded to the throne after the assassination of his father, Philip II. After subduing rebellious vassals, he invaded the Persian Achaemenid Empire in 334 BC. Alexander swiftly conquered large areas of Western Asia and Egypt before defeating the Persian king Darius III in battle at Issus and Gaugamela. Achieving complete domination over the former lands of the Achaemenids by 327 BC, Alexander attempted to conquer India but turned back after his weary troops mutinied. Following his death aged thirty-two in Babylon in 323 BC, his empire disintegrated in a series of civil wars fought between his followers.

Alexander founded numerous settlements during his campaigns, naming them after himself or close followers. These have been the subject of intense debate, as the accounts of ancient and medieval scholars differ wildly and are often contradictory. Plutarch provides the maximum estimate of seventy cities in his Life of Alexander, but most texts attest to between ten and twenty foundations. The Greek Alexander Romance lists between nine and thirteen cities, depending on the recension; the Syriac, Armenian, Hebrew, and Ethiopic versions of the Romance also record twelve or thirteen foundations. Persian sources such as al-Tabari, al-Dinawari, Hamza al-Isfahani, and Qudama ascribe between nine and twelve settlements to Alexander. Stephanus of Byzantium recorded around twenty settlements. Some authors additionally document the number of cities established in a specific area: for example, Strabo records that Alexander founded eight cities in Bactria. The accounts of Alexander's campaigns, primarily those of Arrian, Plutarch, Diodorus, Curtius Rufus, and Justin, provide supplementary evidence. Finally, the geographers Eratosthenes, Ptolemy, and Pliny draw upon the otherwise-lost evidence of Alexander's bematist distance-measurers.

Epictetus (/ˌɛpɪkˈtiːtəs/, EH-pick-TEE-təss; Ancient Greek: Ἐπίκτητος, Epíktētos; c. 50 – c. 135 AD) was a Greek Stoic philosopher. He was born into slavery at Hierapolis, Phrygia (present-day Pamukkale, in western Turkey) and lived in Rome until his banishment, after which he spent the rest of his life in Nicopolis in northwestern Greece.

Epictetus studied Stoic philosophy under Musonius Rufus and after manumission, his formal emancipation from slavery, he began to teach philosophy. When philosophers were banished from Rome by Emperor Domitian toward the end of the first century, Epictetus founded a school of philosophy in Nicopolis. He taught that philosophy is a way of life and not simply a theoretical discipline. To Epictetus, all external events are beyond our control; he argues that we should accept whatever happens calmly and dispassionately. However, he held that individuals are responsible for their own actions, which they can examine and control through rigorous self-discipline. His teachings were written down and published by his pupil Arrian in his Discourses and Enchiridion. They influenced many later thinkers, including Marcus Aurelius, Pascal, Diderot, Montesquieu, Rabelais, and Samuel Johnson.

There are numerous surviving ancient Greek and Latin sources on Alexander the Great, king of Macedon, as well as some Asian texts. The five main surviving accounts are by Arrian, Plutarch, Diodorus Siculus, Quintus Curtius Rufus, and Justin. In addition to these five main sources, there is the Metz Epitome, an anonymous late Latin work that narrates Alexander's campaigns from Hyrcania to India. Much is also recounted incidentally by other authors, including Strabo, Athenaeus, Polyaenus, Aelian, and others. Strabo, who gives a summary of Callisthenes, is an important source for Alexander's journey to Siwah.

Chalcedon (/ˈkælsɪˌdɒn, kælˈsiːdən/; Ancient Greek: Χαλκηδών, romanized: Khalkēdṓn) was an ancient maritime town of Bithynia, in Asia Minor, Turkey. It was located almost directly opposite Byzantium, south of Scutari (modern Üsküdar) and it is now a district of the city of Istanbul named Kadıköy. The name Chalcedon is a variant of Calchedon, found on all the coins of the town as well as in manuscripts of Herodotus's Histories, Xenophon's Hellenica, Arrian's Anabasis, and other works. Except for the Maiden's Tower, almost no above-ground vestiges of the ancient city survive in Kadıköy today; artifacts uncovered at Altıyol and other excavation sites are on display at the Istanbul Archaeological Museum.

The site of Chalcedon is located on a small peninsula on the north coast of the Sea of Marmara, near the mouth of the Bosphorus. A stream, called the Chalcis or Chalcedon in antiquity and now known as the Kurbağalıdere (Turkish: stream with frogs), flows into Fenerbahçe Bay. There, Greek colonists from Megara in Attica founded the settlement of Chalcedon in 685 BC, some seventeen years before Byzantium.

Neoptolemus (Ancient Greek: Νεoπτόλεμος; died 321 BC) was a Macedonian officer who served under Alexander the Great.

According to Arrian he belonged to the race of the Aeacidae, so he was probably related to the family of the kings of Epirus.

The lancea was a javelin used in ancient Rome. According to the Oxford English Dictionary, the word originally came from the Celtiberian language, also cf. λόγχη (lonche), the Greek term for lance. One kind of lancea, possibly known as the lancea pugnatoria or "the fighting lance" was used as a thrusting weapon by cavalrymen. This weapon was used by cavalrymen as it was lighter and easier to use than the pilum. The lancea was also used by auxiliaries. Legionaries would use the lancea if the occasion called for it. Arrian equipped his army with the weapon during a battle with the Alans. Soldiers that used it were known as lancearii. It is unclear how the lancea was distinguished from the hastae. Many lancea had amenta, although not all. This kind of javelin also had short wooden shafts and small leaf-shaped metal heads. Sometimes the heads had elongated points which may have been used to increase the penetration of the spear.

Indika (Greek: Ἰνδικά; Latin: Indica) is an account of Mauryan India by the Greek writer Megasthenes (died c. 290 BCE). The original work is now lost, but its fragments have survived in later Greek and Latin works. The earliest of these works are those by Diodorus Siculus, Strabo (Geographica), Pliny, and Arrian (Indica).

A periplus (/ˈpɛrɪplʌs/), or periplous, is a manuscript document that lists the ports and coastal landmarks, in order and with approximate intervening distances, that the captain of a vessel could expect to find along a shore. In that sense, the periplus was a type of log, the nautical counterpart of the later Roman itinerarium of road stops. However, the Greek navigators added various notes, which, if they were professional geographers, as many were, became part of their own additions to Greek geography.

The form of the periplus is at least as old as the earliest Greek historian, the Ionian Hecataeus of Miletus. The works of Herodotus and Thucydides contain passages that appear to have been based on peripli.