Widely considered the first true autobiography in Western literature -- a bishop's unflinching account of his own restless youth and conversion to Christianity.
Augustine wrote the Confessions around 397 CE, and it's often credited as the first genuine autobiography in Western literature -- not a public record of achievements, but an interior account of desire, guilt, intellectual searching, and eventual religious conversion, addressed directly to God in a voice startlingly personal for its era. Augustine doesn't spare himself: he writes candidly about a stolen pear as a boy, a long relationship with a mistress he never names, years spent following philosophies he later renounced, and a conversion he experienced as a genuine rupture rather than a smooth transition. The book's psychological interiority had no real precedent in the ancient world and shaped how introspective writing worked for the next 1,600 years.