Hellenistic Period

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The Hellenistic period is the era of Greek history running from the death of Alexander the Great in 323 BCE to the Roman conquest of Ptolemaic Egypt in 31–30 BCE — the centuries in which Greek language, learning, and habits spread across the lands Alexander had taken, and met the older cultures of Egypt and the Near East. The name itself is a modern coinage, given currency by the nineteenth-century German historian Johann Gustav Droysen, whose Geschichte des Hellenismus (1836–1843) used Hellenismus for the mingling of Greek with Eastern that he treated as the era’s defining trait. The word marks something real: this is the age in which the categories of one civilization were carried into the words of another, and the residue of that translation — Greek philosophical vocabulary fitted over Egyptian and Babylonian priestly lore — is much of what the later esoteric traditions would inherit.

From Alexander to the successor kingdoms

Alexander died at Babylon in June 323 BCE without a settled heir, and the empire he had carried from Macedon to the Indus did not outlast him. For more than four decades his marshals — the Diadochoi, the Successors — fought over the inheritance in the Wars of the Diadochi (roughly 323–281 BCE). The decisive battles, Ipsus in 301 BCE and Corupedium in 281 BCE, broke the dream of a single empire and left a balance of large dynastic kingdoms in its place. Three houses dominated. The Ptolemies took Egypt: Ptolemy I Soter, one of Alexander’s most trusted officers, governed from 323 and assumed the kingship in 305 BCE, fixing his capital at Alexandria. The Seleucids, founded by Seleucus I Nicator, ruled the vast Asian core from Syria through Mesopotamia and once as far as the edge of India, with capitals at Seleucia on the Tigris and later Antioch. In Macedon and Greece the Antigonids prevailed, stabilized under Antigonus II Gonatas from about 277 BCE. Smaller states crowded the seams — above all the Attalids of Pergamon in Asia Minor, who from Philetaerus (c. 282 BCE) built a kingdom and a rival library — alongside the surviving Greek leagues and the eastern Greek realm of Bactria.

These were not Greek nations but Greek dynasties ruling overwhelmingly non-Greek populations: Egyptians along the Nile, Babylonians and Syrians and Persians across the Seleucid east. The kings governed through Greek-speaking administrators and settled Greek and Macedonian veterans in new foundations, yet they also took up the idioms of the lands they held. The Ptolemies were crowned as pharaohs and patronized the Egyptian temples; the Seleucids restored Babylonian shrines and recorded their acts in cuneiform. The political period closes with Rome: the Antigonid kingdom fell at Pydna in 168 BCE, the Attalids willed Pergamon to Rome in 133 BCE, the Seleucid remnant was annexed by Pompey in 63 BCE, and the last and longest-lived of the kingdoms ended when Octavian defeated Antony and Cleopatra VII at Actium in 31 BCE and took Egypt the following year. The cultural diffusion the kingdoms had set going, however, ran on for centuries under Roman rule — and it is in that long aftermath, not in the political period itself, that the texts most bound up with the age’s religious ferment were actually composed.

Koine Greek and a connected world

The instrument of the whole transformation was language. The Attic-based common speech that spread with Alexander’s armies and the new cities — koinē, the “common” Greek — became the working tongue of administration, trade, and the educated class from the Nile to the Iranian plateau. A merchant in Antioch, a priest in Alexandria, and a soldier in Bactria could conduct business in versions of the same language; it is the Greek of the Septuagint and, later, of the New Testament and the philosophical Hermetica. With a shared language came a shared horizon. The Hellenistic world was wider and more porous than the world of the city-states had been: a single literate culture stretched across political borders, ideas and cults traveled the trade routes, and an educated person could think of the inhabited earth — the oikoumenē — as one interconnected place rather than a patchwork of poleis. The Stoics gave this new scale a name and a doctrine in their ideal of the kosmopolitēs, the citizen of the cosmos, for whom the truly binding community was not the city but the rational order of the whole.

Alexandria, the Library, and the Museum

If the age had a capital of the mind, it was Alexandria. The city Alexander founded on the Egyptian coast in 331 BCE grew under the early Ptolemies into the largest and richest city of the Greek world, and the seat of its most ambitious institution: the Mouseion, the “shrine of the Muses,” a royally funded research community whose attached Library set out to gather copies of every book that existed. The project is traditionally connected with Demetrius of Phalerum, a former Athenian statesman who took refuge at Ptolemy I’s court around 295 BCE, and it was carried forward under Ptolemy II Philadelphus. The Library’s scholar-librarians built the foundations of textual scholarship as a discipline: Zenodotus of Ephesus edited Homer; Callimachus of Cyrene compiled the Pinakes, a catalog of the holdings that doubled as the first systematic literary bibliography; Eratosthenes of Cyrene, chief librarian and polymath, measured the circumference of the earth; and Aristarchus of Samothrace refined the critical signs used to mark suspect lines in a text. Alongside the philology, Alexandria became the center of Greek mathematics, astronomy, and medicine — the milieu of Euclid and, later, of the astronomer and geographer Claudius Ptolemy, whose synthesis would govern the heavens for fourteen centuries. The same city housed a great Egyptian priestly learning and a large Greek-speaking Jewish community, and it is no accident that the encounter between Greek philosophy and Egyptian and Jewish religion which produced the Hermetic and Gnostic currents was, above all, an Alexandrian event.

The new philosophies

The Classical schools did not vanish — Plato’s Academy and Aristotle’s Lyceum continued — but the Hellenistic age was defined by new philosophies that took the well-being of the individual, rather than the ordering of the city, as their central question. Each offered a route to a settled mind in a world no longer governed from a single polis.

Stoicism, founded at Athens around 300 BCE by Zeno of Citium and systematized by Chrysippus, taught that the cosmos is a single living, rational, divine whole pervaded by logos, and that the human good lies in living in agreement with that universal reason — accepting what is not in one’s power and cultivating virtue as the only true good. Its conception of an immanent divine Logos ordering all things, and its physics of a fiery rational pneuma permeating matter, would feed directly into later religious thought. Epicureanism, founded by Epicurus of Samos (341–270 BCE) in his Athenian Garden, held the opposite physics — a universe of atoms falling through void, with no providence and no need to fear the gods or death — and an ethics aimed at ataraxia, freedom from disturbance, through the prudent measuring of pleasure. Skepticism came in two forms: the Pyrrhonism descending from Pyrrho of Elis (c. 360–270 BCE) and preserved by Timon of Phlius, which sought tranquility through epochē, the suspension of judgment on all dogmatic claims; and the Academic skepticism that Arcesilaus and later Carneades made the program of Plato’s own Academy, turning its dialectic against the certainties of the Stoics. The older school of the Cynics, with its scorn for convention and its demand to live “according to nature,” supplied the ascetic edge from which Zeno’s Stoicism partly grew. Together these schools shifted the center of gravity of philosophy from political theory toward the care of the self — a reorientation that prepared the ground for traditions promising not civic excellence but the soul’s deliverance.

Syncretism, mystery, and the cult of the king

The religious life of the age was marked by motion and mixture. Under the long practice the Greeks called interpretatio — the identification of foreign gods with their own — Egyptian, Greek, and Mesopotamian deities were merged and given new combined forms. The clearest case is the god Serapis, promoted under Ptolemy I as a deity who could be worshipped by Greeks and Egyptians alike: built on the Memphite Osiris-Apis but given Greek features and a Greek-style image, his cult was shaped, the tradition holds, with the counsel of Timotheus of Eleusis, an expert in mystery rites, and of the Egyptian priest Manetho. Beside him rose his consort Isis, whose worship spread out from Egypt along the sea-lanes until she became one of the most widely venerated divinities of the Mediterranean — a cosmopolitan goddess who could absorb the attributes of many others and offer her initiates a personal bond and the promise of care beyond death.

The mystery religions more generally answered a hunger that the old civic cult did not. Where public religion bound a citizen to a city, the mysteries — of Demeter at Eleusis, of the Great Mother, of Dionysus, of Isis, and later of Mithras — bound an individual to a deity through a transforming initiation, offering hope for the soul after death. These were cults of experience rather than doctrine; what the initiate received was not a body of teaching but a change of state, an undergoing. That same logic — saving knowledge as something undergone rather than argued — runs through the Hermetic and Gnostic literature that the age’s matrix would later yield.

The Hellenistic kings themselves entered the religious field. Alexander had been honored as a god, and his successors made ruler cult an instrument of rule: Ptolemy II Philadelphus proclaimed his deceased father divine and established a living cult of himself and his queen; the Seleucids likewise received divine honors across their cities. Divinity became a category of statecraft, and the distance between gods and men — already blurred in the older hero cults — grew thinner still.

The rise of astrology

From Babylonia the Greeks inherited the long observational record of the heavens and the conviction that celestial motions bear on earthly affairs. In the Hellenistic world this was elaborated into the intricate technical system of Hellenistic astrology: the zodiac, the planets as ruling powers, the houses, the casting of the horoscope for the moment of birth. Greek geometry and the philosophical idea of a cosmos bound together by sympatheia — a network of correspondence linking every part of the whole — gave the Babylonian omen-lore a rational frame, so that the stars were read not as arbitrary signs but as the visible workings of a single ordered universe. Interest grew rapidly from the first century BCE, and the assumption that the heavens and the human soul are answerable to one another became one of the deepest premises the esoteric traditions would carry forward.

Hellenistic Judaism and the Septuagint

The encounter of Greek thought with the religions of the East had no more consequential instance than its meeting with Judaism. The large Jewish community of Alexandria lived and prayed in Greek, and for it the Hebrew scriptures were rendered into Greek in the translation known as the Septuagint (Latin septuaginta, “seventy,” abbreviated LXX) — begun, by the traditional account, under Ptolemy II Philadelphus (reigned 285–246 BCE) with the Torah, and extended over the following century or more to the rest of the canon. The legend preserved in the Letter of Aristeas, a work composed by an Alexandrian Jew in the second century BCE, tells of seventy-two translators summoned from Jerusalem at the king’s request; the historical kernel is that the Greek Bible was the first translation of the Hebrew scriptures, and that it made Israel’s God and law available in the common philosophical language of the age.

The fullest fruit of that fusion is the work of Philo of Alexandria (c. 20 BCE – c. 50 CE), a Jewish philosopher who read the Torah through the categories of Greek — and especially Middle Platonist — thought. Using the method of allegorical exegesis, Philo found in the Mosaic books a complete philosophical theology, and in his hands the divine Logos became a mediating power between the unknowable God and the created world. The same period’s wisdom literature — the Book of Wisdom, with its hypostatized divine Sophia, and the Stoic-tinged argument of 4 Maccabees that pious reason rules the passions — shows the wider Hellenistic-Jewish milieu actively appropriating Greek philosophy. Philo’s Logos doctrine stands close both to the Sophia of the wisdom texts and to the Nous-Logos pairing of the Hermetic Poimandres, and it would pass into early Christian theology and, by distinct chains of reception, into Jewish philosophy. He is a primary node in the matrix from which Hermetism and patristic Christianity alike drew.

The matrix of the esoteric traditions

What the Hellenistic age handed to the later esoteric currents was less a set of doctrines than a set of conditions. A common language carried ideas across old boundaries. Greek philosophy had turned its attention to the salvation of the individual soul. Babylonian astral lore had been fitted into a Greek cosmos of universal sympathy. Egyptian priestly prestige lent ancient authority to new revelations, and the mystery cults had habituated people to the idea that the decisive knowledge is one that transforms rather than informs. From this syncretism — Greek philosophical vocabulary, Egyptian and Babylonian sacred science, Jewish monotheism reasoned in Greek — came, in the early centuries of the Roman empire, the philosophical Hermetica attributed to Hermes Trismegistus, the Gnostic systems later recovered in the Nag Hammadi library, and the spiritual ascent of Neoplatonism. The conviction common to them all — that a saving gnosis of the divine could be had directly — is unintelligible apart from the world the Successors made.

Scholarship and primary texts

The modern study of the period turns on the recognition, against the old verdict of a decline from Classical Greece, that the Hellenistic centuries were an age of unprecedented contact and creativity. The framing term itself descends from Johann Gustav Droysen, Geschichte des Hellenismus (Hamburg/Gotha, 1836–1843), whose later volumes are in the public domain (Internet Archive scans of the Geschichte des Hellenismus). The standard modern narrative histories are Peter Green, Alexander to Actium: The Historical Evolution of the Hellenistic Age (University of California Press, 1990), and the Cambridge Ancient History, 2nd ed., vols. VII.1 and VIII; the short interpretive synthesis of G. W. Bowersock, Hellenism in Late Antiquity (University of Michigan Press, 1990), traces the long afterlife of Greek culture under Rome. For the intellectual capital, P. M. Fraser’s three-volume Ptolemaic Alexandria (Oxford: Clarendon Press, 1972) remains the foundational reference. The philosophical schools are most accessibly entered through A. A. Long and D. N. Sedley, The Hellenistic Philosophers, 2 vols. (Cambridge University Press, 1987), which presents the fragmentary sources in translation with commentary; the open Stanford Encyclopedia of Philosophy supplies current surveys of ancient Skepticism and the Hellenistic ethical schools.

The primary sources are themselves largely the work of the age. Diogenes Laertius preserves, in his Lives of Eminent Philosophers (Books VII and X), the only continuous fragments of Zeno and the surviving letters and Principal Doctrines of Epicurus; the public-domain English of C. D. Yonge and the Loeb text of R. D. Hicks (1925) both circulate freely. The Stoic fragments were gathered by Hans von Arnim in the Stoicorum Veterum Fragmenta (Leipzig: Teubner, 1903–1905), long in the public domain. For Hellenistic Judaism, the one complete public-domain English Philo is that of Charles Duke Yonge, The Works of Philo Judaeus (London: Bohn, 1854–1855), hosted in full at the Early Christian Writings collection of the Yonge translation; the companion wisdom literature appears in R. H. Charles, ed., The Apocrypha and Pseudepigrapha of the Old Testament (Oxford: Clarendon, 1913). The period’s most characteristic religious literature — the philosophical Hermetica — is read here in the translation of G. R. S. Mead, of which the first treatise, the Poimandres, is hosted in this Library (the Mead Corpus Hermeticum, I. Poemandres). On the specifically Egyptian-Hermetic side of the synthesis, Garth Fowden’s The Egyptian Hermes: A Historical Approach to the Late Pagan Mind (Cambridge University Press, 1986) is the standard scholarly treatment of how the milieu this period created issued, generations later, in the Hermetic writings.

→ In the library: The Corpus Hermeticum (Mead) — I. Poemandres

→ Related: Classical Antiquity · Gnosis · Neoplatonism · Hermes Trismegistus · Mesopotamia · Alexandria · Mystery Religions · Serapis · Isis · Stoicism · Philo Of Alexandria · Hellenistic Astrology · Syncretism · Roman Empire