from Neleus. The rest seem to have been hidden by his family, known for their ignorance. The library then disappeared for several centuries until it appears to have been bought from Neleus's heirs in the first century BCE and returned to the school. However, when Sulla attacked Athens, the books were shipped to Rome. Throughout their travels one fifth of Aristotle's works were lost and thus are not a part of the modern Aristotelian collection. Still, what did remain of Aristotle's works and the rest of the library were arranged and edited for school use between 73 and , supposedly by Andronicus of Rhodes, the Lyceum's eleventh leader. Since then, the remaining works have been translated and widely distributed, providing much of the modern knowledge of ancient Western philosophy. The Lyceum after Aristotle As head of the Lyceum, Theophrastus continued Aristotle's foci of observation, collaborative research and documentation of philosophical history, thus making his own contributions to the library, most notably as the first organizer of botany. Though he was not a citizen of Athens (he had met Aristotle in the 340s in his homeland of Lesbos) he managed to buy land near the main gym of the Lyceum as well as several buildings for the library and additional workspace in . Theophrastus continued his own work while teaching and demonstrated his devotion to learning and education by leaving the land of the Lyceum to his friends to continue their work in education in philosophy in the non-private tradition of the school upon his death. The school was closed for a year () when all foreign philosophers were required to leave Athens. It seems to have gone into decline from c. 300, and to have more or less disintegrated sometime after when its last certain scholar, Lyco of Troas, died and left the Lyceum not to one man but to all his colleagues. The Lyceum fell with the rest of Athens in . There is some thought that the Lyceum was refounded in the first century CE by Andronicus of Rhodes and once again flourished as a philosophical school in the second century, continuing until the Heruli and Goths sacked Athens in . Leaders of the Lyceum Theophrastus headed the Lyceum for 36 years, between Aristotle's exile from Athens in until his own death in . There is some speculation that both Aristotle and Theophrastus were buried in the gardens