Education in ancient Rome progressed from an informal, familial system of education in the early Republic to a tuition-based system during the late Republic and the Empire. The Roman education system was based on the Greek system – and many of the private tutors in the Roman system were Greek slaves or freedmen. Due to the extent of Rome's power, the methodology and curriculum used in Rome was copied in its provinces, and thereby proved the basis for education systems throughout later Western civilization. Organized education remained relatively rare, and there are few primary sources or accounts of the Roman educational process until the 2nd century AD. Due to the extensive power wielded by the paterfamilias over Roman families, the level and quality of education provided to Roman children varied drastically from family to family; nevertheless, Roman popular morality came eventually to expect fathers to have their children educated to some extent, and a complete advanced education was expected of any Roman who wished to enter politics.
At the height of the Roman Republic and later the Roman Empire, the Roman educational system gradually found its final form. Formal schools were established, which served paying students; very little that could be described as free public education existed. Both boys and girls were educated, though not necessarily together.
In a system much like the one that predominates in the modern world, the Roman education system that developed arranged schools in tiers. The educator Quintilian recognized the importance of starting education as early as possible, noting that "memory ... not only exists even in small children, but is specially retentive at that age". A Roman student would progress through schools just as a student today might go from primary school to secondary school and then to college. They were generally exempted from studies during the market days which formed a kind of weekend on every eighth day of the year. Progression depended more on ability than age with great emphasis being placed upon a student's ingenium or inborn "gift" for learning, and a more tacit emphasis on a student's ability to afford high-level education.
Prior to the 3rd century BC. the Roman system of education was closely bound to the Roman social institution of patria potestas, in which the father acted as head of the household (paterfamilias), and had, according to law, absolute right of control over his children. It was the father's duty to educate his children and should he be unable to fulfill this duty, the task was assumed by other family members. It was not until 272 BC with the capture of Tarentum, the annexation of Sicily in 241 BC, and the period following the First Punic War that Romans were exposed to a strong influence of Greek thought and lifestyle and found leisure to study the arts.