Ptolemy III Euergetes

The Library of Alexandria in Alexandria, Egypt, was one of the largest and most significant libraries of the ancient world. The library was part of a larger research institution called the Mouseion, which was dedicated to the Muses, the nine goddesses of the arts. The idea of a universal library in Alexandria may have been proposed by Demetrius of Phalerum, an exiled Athenian statesman living in Alexandria, to Ptolemy I Soter, who may have established plans for the library, but the library itself was probably not built until the reign of his son Ptolemy II Philadelphus. The library quickly acquired many papyrus scrolls, owing largely to the Ptolemaic kings' aggressive and well-funded policies for procuring texts. It is unknown precisely how many scrolls were housed at any given time, but estimates range from 40,000 to 400,000 at its height.

Alexandria came to be regarded as the capital of knowledge and learning, in part because of the Great Library. Many important and influential scholars worked at the Library during the third and second centuries BC, including: Zenodotus of Ephesus, who worked towards standardizing the works of Homer; Callimachus, who wrote the Pinakes, sometimes considered the world's first library catalog; Apollonius of Rhodes, who composed the epic poem the Argonautica; Eratosthenes of Cyrene, who calculated the circumference of the earth within a few hundred kilometers of accuracy; Hero of Alexandria, who invented the first recorded steam engine; Aristophanes of Byzantium, who invented the system of Greek diacritics and was the first to divide poetic texts into lines; and Aristarchus of Samothrace, who produced the definitive texts of the Homeric poems as well as extensive commentaries on them. During the reign of Ptolemy III Euergetes, a daughter library was established in the Serapeum, a temple to the Greco-Egyptian god Serapis.

Callimachus (/kəˈlɪməkəs/; Ancient Greek: Καλλίμαχος, romanized: Kallimachos; c. 310 – c. 240 BC) was an ancient Greek poet, scholar, and librarian who was active in Alexandria during the 3rd century BC. A representative of Ancient Greek literature of the Hellenistic period, he wrote over 800 literary works, most of which do not survive, in a wide variety of genres. He espoused an aesthetic philosophy, known as Callimacheanism, which exerted a strong influence on the poets of the Roman Empire and, through them, on all subsequent Western literature.

Born into a prominent family in the Greek city of Cyrene in modern-day Libya, he was educated in Alexandria, the capital of the Ptolemaic kings of Egypt. After working as a schoolteacher in the city, he came under the patronage of King Ptolemy II Philadelphus and was employed at the Library of Alexandria where he compiled the Pinakes, a comprehensive catalogue of all Greek literature. He is believed to have lived into the reign of Ptolemy III Euergetes.

The Serapeum of Alexandria was an ancient Greek temple built by Ptolemy III Euergetes (reigned 246–222 BC) and dedicated to the Greco-Egyptian syncretic god Serapis, made the protector of Alexandria, Egypt. The site has been heavily plundered (see below).

The Ptolemaic Decrees were a series of decrees by synods of ancient Egyptian priests. They were issued in the Ptolemaic Kingdom, which controlled Egypt from 305 BC to 30 BC. In each decree, the benefactions of the reigning pharaoh, especially towards the priesthood, are recognised, and religious honours are decreed for him.

Two decrees were issued under Ptolemy III Euergetes (the Decree of Alexandria and Decree of Canopus), another under Ptolemy IV Philopator (the Raphia Decree), and others under Ptolemy V Epiphanes (the Decree of Memphis and the two Philensis Decrees). Multiple copies of the decrees, inscribed on stone steles, were erected in temple courtyards, as specified in the text of the decrees.

Berenice II Euergetis (267 or 266 – 221 BCE; Greek: Βερενίκη Ευεργέτις, Berenikē Euergetis, "Berenice the Benefactress") was queen regnant of Cyrenaica from 258 to 246 BCE and queen of Ptolemaic Egypt from 246 to 222 BCE as the wife of Ptolemy III. She is sometimes considered co-regent of her Ptolemaic husband.

She married Demetrius the Fair, thus giving him the throne of Cyrenaica, on the death of her father Magas in 250/249 BCE. After a short power struggle with her mother, Berenice married her half-cousin Ptolemy III, the third ruler of the Ptolemaic kingdom. This marriage led to the re-incorporation of Cyrenaica into the Ptolemaic empire. As queen of Egypt, Berenice participated actively in government, was incorporated into the Ptolemaic state cult alongside her husband and worshipped as a goddess in her own right. She is best known for sacrificing her hair as a votive offering, which led to the constellation Coma Berenices being named after her. Berenice was murdered by the regent Sosibius shortly after the accession of her son Ptolemy IV Philopator in 221 BCE.

The Battle of Andros was an obscure naval battle during the Third Syrian War. Despite its numerical superiority, the Egyptian fleet, probably commanded by Sophron of Ephesus, lost to a Macedonian fleet led by Antigonus II Gonatas. The Egyptian captain Ptolemy Andromachou, an illegitimate half-brother of the Pharaoh, lost his ship and crew, barely escaping to Ephesus.

The date of the battle is uncertain, but generally the year 246/245 BC is accepted. Following the battle, the Egyptian king Ptolemy III Euergetes lost the dominion of the Nesiotic League to Antigonus Gonatas.