In antiquity, it was widely held that the Homeric poems were collected and organised in Athens in the late sixth century BC by the tyrant Peisistratos (died 528/7 BC), in what subsequent scholars have dubbed the "Peisistratean recension". The idea that the Homeric poems were originally transmitted orally and first written down during the reign of Peisistratos is referenced by the first-century BC Roman orator Cicero and is also referenced in a number of other surviving sources, including two ancient "Lives of Homer". From around 150 BC, the texts of the Homeric poems seem to have become relatively established. After the establishment of the Library of Alexandria, Homeric scholars such as Zenodotus of Ephesus, Aristophanes of Byzantium and in particular Aristarchus of Samothrace helped establish a canonical text.