of the brutal spectacles, but found virtue in the courage and dignity of the defeated fighter rather than in victory—an attitude that finds its fullest expression with the Christians martyred in the arena. Even martyr literature, however, offers "detailed, indeed luxuriant, descriptions of bodily suffering", and became a popular genre at times indistinguishable from fiction. Personal training and play In the plural, ludi almost always refers to the large-scale spectator games. The singular ludus, "play, game, sport, training," had a wide range of meanings such as "word play," "theatrical performance," "board game," "primary school," and even "gladiator training school" (as in Ludus Magnus, the largest such training camp at Rome). Activities for children and young people included hoop rolling and knucklebones (astragali or "jacks"). The sarcophagi of children often show them playing games. Girls had dolls, typically 15–16 cm tall with jointed limbs, made of materials such as wood, terracotta, and especially bone and ivory. Ball games include trigon, which required dexterity, and harpastum, a rougher sport. Pets appear often on children's memorials and in literature, including birds, dogs, cats, goats, sheep, rabbits and geese. After adolescence, most physical training for males was of a military nature. The Campus Martius originally was an exercise field where young men developed the skills of horsemanship and warfare. Hunting was also considered an appropriate pastime. According to Plutarch, conservative Romans disapproved of Greek-style athletics that promoted a fine body for its own sake, and condemned Nero's efforts to encourage gymnastic games in the Greek manner. Some women trained as gymnasts and dancers, and a rare few as female gladiators. The famous "Bikini Girls" mosaic shows young women engaging in apparatus routines that might be compared to rhythmic gymnastics. Women, in general, were encouraged to maintain their health through activities such as playing ball, swimming, walking, reading aloud (as a breathing exercise), riding in vehicles, and travel. People of all ages played board games pitting two players against each other, including latrunculi ("Raiders"), a game of strategy in which opponents coordinated the movements and capture of multiple game pieces, and XII scripta ("Twelve Marks"), involving dice and arranging pieces on a grid of letters or words. A game referred to as alea (dice) or tabula (the board), to which the emperor Claudius was notoriously addicted, may have been similar to backgammon, using a dice-cup (pyrgus). Playing with dice as a form of gambling was