As the blood-spattered 2007 film 300 would seem to confirm, the famously tough Spartans can still stir the imagination. In part this stems from their legendary upbringing. Under a system known as the agoge, Spartan boys were rigorously trained by the state to develop physical toughness, loyalty and cunning. Babies judged unlikely to make the grade were left exposed on the slopes of Mount Taïyetos. Other boys were taken from their families at the age of seven to live in barracks. They were habitually underfed, so that they would learn to live off the land. At the age of twelve, they were required to form a sexual bond with a young Spartan soldier, who would act as their mentor. At eighteen, they would become provisional members of the army until the age of thirty, when it would finally be decided if they were worthy of Spartan citizenship. At this point they were expected to marry and produce offspring. The system was much admired in the ancient world, and boys from other city-states were sometimes sent here for their education.