Callimachus migrated to Alexandria, where King Ptolemy II Philadelphus of Egypt gave him employment in the Library of Alexandria, the most important such institution in the Hellenistic world. Of Callimachus’s voluminous writings, only 6 hymns, about 60 epigrams, and fragments survive, many of them discovered in the 20th century. His most famous poetic work, illustrative of his antiquarian interests, was the Aitia (Causes), probably produced between 270 and 245 bce. This work is a narrative elegy in four books, containing a medley of recondite tales from Greek mythology and history by which the author seeks to explain the legendary origin of obscure customs, festivals, and names. The structure of the poem, with its short episodes loosely connected by a common theme, became the model for the Fasti and Metamorphoses of the Roman poet Ovid. Of his elegies for special occasions, the best known is the Lock of Berenice (itself included in the Aitia as the last episode of the collection), a polished piece of court poetry later freely adapted into Latin by Catullus.
Callimachus’s other works include the Iambi, 13 short poems on occasional themes, and the Hecale, a small-scale epic, or epyllion, which set a new poetic fashion for concise, miniaturistic detail. Callimachus himself insisted on the exercise of consummate literary craftsmanship and virtuosity within poems of relatively short length. He raised the hexameter to new heights of order and euphony, and his poetry may well be considered the peak of refinement of Greek verse of the period. In the Hymns, Callimachus adapted the traditional religious form of the Homeric Hymns to an original and purely literary use. The Epigrams treat a variety of personal themes with consummate artistry. Of his prolific prose works, certainly the most famous was the Pinakes (“Tables of Those Who Have Distinguished Themselves in Every Form of Culture and of What They Wrote”) in 120 books. This work consisted of an elaborate critical and biographical catalog of the authors of the works held in the Library of Alexandria.
Discoveries in the 19th and 20th centuries of ancient Egyptian papyruses confirm the fame and popularity of Callimachus. No other Greek poet except Homer is so often quoted by the grammarians of late antiquity. He was taken as a model by many Roman poets, notably Catullus and Propertius, and by the most sophisticated Greek poets, from Euphorion, Nicander, and Parthenius to Nonnus and his followers in the 5th century ce.