became an influential model for Christian writers throughout the Middle Ages. It tells of the hedonistic lifestyle Augustine lived for a time within his youth, associating with young men who boasted of their sexual exploits; his following and leaving of the anti-sex and anti-marriage Manichaeism in attempts to seek sexual morality; and his subsequent return to Christianity due to his embracement of Skepticism and the New Academy movement (developing the view that sex is good, and that virginity is better, comparing the former to silver and the latter to gold; Augustine's views subsequently strongly influenced Western theology). Confessions is considered one of the great masterpieces of western literature. Peter Abelard's 12th-century Historia Calamitatum is in the spirit of Augustine's Confessions, an outstanding autobiographical document of its period. Early autobiographies In the 15th century, Leonor López de Córdoba, a Spanish noblewoman, wrote her Memorias, which may be the first autobiography in Castillian. Zāhir ud-Dīn Mohammad Bābur, who founded the Mughal dynasty of South Asia kept a journal Bāburnāma (Chagatai/; literally: "Book of Babur" or "Letters of Babur") which was written between 1493 and 1529. One of the first great autobiographies of the Renaissance is that of the sculptor and goldsmith Benvenuto Cellini (1500–1571), written between 1556 and 1558, and entitled by him simply Vita (Italian: Life). He declares at the start: "No matter what sort he is, everyone who has to his credit what are or really seem great achievements, if he cares for truth and goodness, ought to write the story of his own life in his own hand; but no one should venture on such a splendid undertaking before he is over forty." These criteria for autobiography generally persisted until recent times, and most serious autobiographies of the next three hundred years conformed to them. Another autobiography of the period is De vita propria, by the Italian mathematician, physician and astrologer Gerolamo Cardano (1574). One of the first autobiographies written in an Indian language was Ardhakathānaka, written by Banarasidas, who was a Shrimal Jain businessman and poet of Mughal India. The poetic autobiography Ardhakathānaka (The Half Story), was composed in Braj Bhasa, an early dialect of Hindi linked with the region around Mathura.In his autobiography, he describes his transition from an unruly youth, to a religious realization by the time the work was composed. The work also is notable for many details of life in Mughal times. The earliest