Callimachus was an ancient Greek poet and scholar from the city of Cyrene, active during the 3rd century BCE. He is best known for his work at the Library of Alexandria, where he contributed to the development of the library's cataloging system. His poetry often focused on themes of love, mythology, and the beauty of nature. Callimachus is famous for his innovative style, which included short, elegant poems and epigrams. His most notable works include the Aetia, a collection of hymns and myths, and various epigrams that showcase his wit and literary skill. His influence extended to later poets, including Catullus and Horace.