The English writer H. G. Wells developed his own codified rules for playing with toy soldiers, which he published in a book titled Little Wars (1913). This is widely remembered as the first rulebook for miniature wargaming. Little Wars had very simple rules to make it fun and accessible to anyone. Little Wars did not use dice or computation to resolve fights. For artillery attacks, players used spring-loaded toy cannons which fired little wooden cylinders to physically knock over enemy models. As for infantry and cavalry, they could only engage in hand-to-hand combat (even if the figurines exhibited firearms). When two infantry units fought in close quarters, the units would suffer non-random losses determined by their relative sizes. Little Wars was designed for a large field of play, such as a lawn or the floor of a large room, because the toy soldiers available to Wells were too large for tabletop play. An infantryman could move up to one foot per turn, and a cavalryman could move up to two feet per turn. To measure these distances, players used a two-foot long piece of string. Wells was also the first wargamer to use models of buildings, trees, and other terrain features to create a three-dimensional battlefield.