Demetrius of Phalerum in the context of "Theophrastus"

The Antigonid dynasty (/ænˈtɪɡoʊnɪd/; Ancient Greek: Ἀντιγονίδαι) was a Macedonian Greek royal house which ruled the kingdom of Macedon during the Hellenistic period. Founded by Antigonus I Monophthalmus, a general and successor of Alexander the Great, the dynasty first came to power after the Battle of Salamis in 306 BC and ruled much of Hellenistic Greece from 294 until their defeat at the Battle of Pydna in 168 BC (Third Macedonian War), after which Macedon came under the control of the Roman Republic.

The wars of the Diadochi witnessed the fall of the Argead dynasty in Macedon resulting in a power vacuum, which the Antigonid and Antipatrid dynasties sought to occupy. The Antigonid family first rose to power when Demetrius I Poliorcetes, son of Antigonus I, ousted Cassander's governor of Athens in 306 BC giving his father control over a land spanning from the Aegean Sea to the Middle East. Despite the subsequent instability and loss of the Asian territory, the family managed to maintain its power in mainland Greece and the islands, with Antigonus II Gonatas ultimately solidifying Antigonid rule over Hellenistic Macedon –a territory also known as the Antigonid Empire. Antigonus III Doson further expanded Macedonian influence in southern Greece reestablishing the Hellenic Alliance with himself as the president. Under Philip V, Antigonid Macedon first came into conflict with Rome, which had become a decisive power in the eastern Mediterranean. In the second century BC, the last Antigonid king, Perseus, became known as the champion of Greek resistance against Rome, albeit Rome's control over Antigonid Greece began to steadily expand, culminating in the fall of the dynasty in 168.

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.

Demetrius I Poliorcetes (/dɪˈmiːtriəs pɒliɔːrˈsiːtiːz/; Greek: Δημήτριος Πολιορκητής, Dēmḗtrios Poliorkētḗs, lit. 'the Besieger of Cities'; 337 – 283 BC) was a Macedonian Greek nobleman and military leader who became king of Asia between 306 and 301 BC, and king of Macedon between 294 and 288 BC. A member of the Antigonid dynasty, he was the son of its founder, Antigonus I Monophthalmus, and his wife Stratonice, as well as the first member of the family to rule Macedon in Hellenistic Greece.

In 307 BC, Demetrius successfully ousted Cassander's governor of Athens and after defeating Ptolemy I at the Battle of Salamis (306 BC) he gave his father the title of basileus ("king") over a land spanning from the Aegean Sea to the Middle East. He acquired the title Poliorcetes ("the besieger") after the unsuccessful siege of Rhodes in 305. While Antigonus I and Demetrius planned a revival of the Hellenic League with themselves as dual hegemons, a coalition of the diadochi; Cassander, Seleucus I, Ptolemy I, and Lysimachus defeated the two at the Battle of Ipsus in 301 BC, in which Antigonus I was killed and the Asian territory of his empire was lost. In 294, Demetrius managed to successfully seize control of Athens and establish himself as king of Macedon. He ruled until 288 when he was eventually driven out by Pyrrhus and Lysimachus and later surrendered to Seleucus I in Cilicia, dying there in 283. After a long period of instability, Demetrius's son, Antigonus II Gonatas, managed to solidify the dynasty in the kingdom and establish its hegemony over much of Hellenistic Greece.

Antiphanes (Ancient Greek: Ἀντιφάνης; c. 408 to 334 BCE) was a playwright of Middle Comedy. According to Heinz-Günther Nesselrath, he is regarded as one of the most important writers of Middle Comedy alongside Alexis.

Antiphanes was said to have written as many as 365 comedies, and 140 titles of his works are known. His first play was produced about 385 BC. According to the Suda, he won 13 victories in dramatic competitions, including 8 at the Lenaea. In his later career he was a pioneer of the New Comedy. Demetrius of Phalerum and Dorotheus of Ascalon wrote treatises on Antiphanes.