In the 2nd and 3rd century CE, those at Didyma and Clarus pronounced the so-called " theological oracles ", in which Apollo confirms that all deities are aspects or servants of an all-encompassing, highest deity.

The type is represented by neo-Attic Imperial Roman copies of the late 1st or early 2nd century, modelled upon a supposed Greek bronze original made in the second quarter of the 5th century BCE, in a style similar to works of Polykleitos but more archaic.

In the late 2nd century CE floor mosaic from El Djem, Roman Thysdrus, he is identifiable as Apollo Helios by his effulgent halo, though now even a god's divine nakedness is concealed by his cloak, a mark of increasing conventions of modesty in the later Empire.

The earliest known written documentation of the Chinese abacus dates to the 2nd century BC.

It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations.

* Metrodorus of Stratonicea ( late 2nd century BC )

* Gotama ( c. 2nd – 3rd century CE ), wrote Jaimini, author of Purva Mimamsa Sutras.

* Alcinous ( philosopher ) ( 2nd century AD )

* Take two: Aspirin, New uses and new dangers are still being discovered as aspirin enters its 2nd century.

Akkadian gradually replaced Sumerian as a spoken language somewhere around the turn of the 3rd and the 2nd millennium BC ( the exact dating being a matter of debate ), but Sumerian continued to be used as a sacred, ceremonial, literary and scientific language in Mesopotamia until the 1st century AD.

A 2nd century AD papyrus of Alcaeus, one of the many such fragments that have contributed to our greatly improved knowledge of Alcaeus ' poetry during the 20th century ( P. Berol.

Alcamenes () was an ancient Greek sculptor of Lemnos and Athens, who flourished in the 2nd half of the 5th century BC.

), one 2nd century BC ( Basil Mandilaras, ' A new papyrus fragment of the Certamen Homeri et Hesiodi Platon 42 ( 1990 ) 45 – 51 ) and one 2nd or 3rd century AD ( University of Michigan pap.

Alexander was a native of Aphrodisias in Caria and came to Athens towards the end of the 2nd century.

The document is dated to the 2nd century BC and, in the form of a vision, briefly discusses dualism and the Watchers:

* Andronicus ben Meshullam, a Jewish scholar of the 2nd century BC

The numerals used in the Bakhshali manuscript, dated between the 2nd century BCE and the 2nd century CE.

* What is an Anabaptist Christian ?, 2nd ed., Palmer Becker, Missio Dei no.

By the 2nd century there were also famous Christian ascetics, such as Saint Thecla.

As far back as the early 2nd century, there is evidence that the codex — usually of papyrus — was the preferred format among Christians: in the library of the Villa of the Papyri, Herculaneum ( buried in AD 79 ), all the texts ( Greek literature ) are scrolls ( see Herculaneum papyri ); in the Nag Hammadi " library ", secreted about AD 390, all the texts ( Gnostic Christian ) are codices.

It was first used to describe the Christian Church in the early 2nd century to emphasize its universal scope.

The Secret Gospel of Mark refers to a version of the Gospel of Mark being circulated in 2nd century Alexandria, which was kept from the Christian community at large.

* Cross, Frank L. The Oxford Dictionary of the Christian Church 2nd ed.

The first mention of " Christian " art is found near the beginning of the 2nd century in the writings of Tertullian ( c. 160-220 ) and in Clement of Alexandria ( c. 150-212 ).

Given earlier debates by Christian authors about the existence of Jesus, e. g. in Justin Martyr's 2nd century Dialogue with Trypho, it would have been expected that the passage from Josephus would have been used as a component of the arguments.

Justin Martyr, also known as just Saint Justin ( AD 100 – ca. 165 ), was an early Christian apologist, and is regarded as the foremost interpreter of the theory of the Logos in the 2nd century.

The fact that Saint Justin taught Christian doctrine in Rome during the pontificate of St Pius I and that the heretics Valentinus, Cerdon, and Marcion visited Rome at the same time, is an argument for the primacy of the Roman See during the 2nd century.

* Montanus, founder of Montanism an early Christian movement of the 2nd century

Polycarp ( 69 – 155 ) () was a 2nd century Christian bishop of Smyrna.

* Christian Janot, Quasicrystals – a primer, 2nd ed.

While tying it to one fixed date would serve to underline the belief that Easter commemorates an actual historical event, without an accompanying calendar reform it would also break the tradition of Easter always being on a Sunday, established since the 2nd century AD and by now deeply embedded in the liturgical practice and theological understanding of almost all Christian denominations.

Often first-day worship ( Sunday morning or Saturday night ) was practiced alongside observance of seventh-day Sabbath rest and was a widespread Christian tradition by the 2nd century ; over time, Sunday thus came to be known as Lord's Day and, later, a rest day.

Many early Christian writers from the 2nd century, such as pseudo-Barnabas, Irenaeus, Justin Martyr and Hippolytus of Rome followed rabbinic Judaism ( the Mishna ) in interpreting Sabbath not as a literal day of rest, but as a thousand-year reign of Jesus Christ, which would follow six millennia of world history.

Sextus Julius Africanus ( c. 160 – c. 240 ) was a Christian traveller and historian of the late 2nd and early 3rd century AD.

In the Early Christian Church, the presumed fact was that the Septuagint was translated by Jews before the era of Christ, and that the Septuagint at certain places gives itself more to a christological interpretation than ( say, 2nd century ) Hebrew texts, was taken as evidence, that " Jews " had changed the Hebrew text in a way that made them less christological.

For example, Taxila was an early centre of Vedic learning, possible from the 6th century BC or earlier ; the Platonic Academy founded in Athens in the 4th century BC seems to have included theological themes in its subject matter ; the Chinese Taixue delivered Confucian teaching from the 2nd century BC ; the School of Nisibis was a centre of Christian learning from the 4th century AD ; Nalanda in India was a site of Buddhist higher learning from at least the 5th or 6th century AD ; and the Moroccan University of Al-Karaouine was a centre of Islamic learning from the 10th century, as was Al-Azhar University in Cairo.

Montanism was an early Christian movement of the late 2nd century, later referred to by the name of its founder, Montanus, but originally known by its adherents as the New Prophecy.

Category: Christian denominations, unions, and movements established in the 2nd century

A distinctive element in the Christian ritual was noted by Justin in the 2nd century, now referred to as the " kiss of peace ," and once part of the rite in the primitive Mass.

The idea that God created the world ex nihilo ( out of nothing ) first appears in Christian writings of the 2nd century CE, when it became necessary to counter the arguments of the Gnostic philosophers.

Models of resolving the relationship between the God the Father and the God the Son were proposed in the 2nd century, but later rejected as heretical by the Christian Church.