coherent to be placed in the oven in one piece and when baked they were easy to separate. The hexagonal shape rather than traditional circular biscuits meant a saving in material and was easier to pack. Biscuits remained an important part of the Royal Navy sailor's diet until the introduction of canned foods. Canned meat was first marketed in 1814; preserved beef in tins was officially added to Royal Navy rations in 1847. Confectionery biscuits Early biscuits were hard, dry, and unsweetened. They were most often cooked after bread, in a cooling bakers' oven; they were a cheap form of sustenance for the poor. By the 7th century AD, cooks of the Persian empire had learnt from their forebears the techniques of lightening and enriching bread-based mixtures with eggs, butter, and cream, and sweetening them with fruit and honey. One of the earliest spiced biscuits was gingerbread, in French, pain d'épices, meaning "spice bread", brought to Europe in 992 by the Armenian monk Grégoire de Nicopolis. He left Nicopolis Pompeii, of Lesser Armenia to live in Bondaroy, France, near the town of Pithiviers. He stayed there for seven years and taught French priests and Christians how to cook gingerbread. This was originally a dense, treaclely (molasses-based) spice cake or bread. As it was so expensive to make, early ginger biscuits were a cheap form of using up the leftover bread mix. With the combination of knowledge spreading from Al-Andalus, and then the Crusades and subsequent spread of the spice trade to Europe, the cooking techniques and ingredients of Arabia spread into Northern Europe. By mediaeval times, biscuits were made from a sweetened, spiced paste of breadcrumbs and then baked (e.g., gingerbread), or from cooked bread enriched with sugar and spices and then baked again. King Richard I of England (aka Richard the Lionheart) left for the Third Crusade (1189–92) with "biskit of muslin", which was a mixed corn compound of barley, rye, and bean flour. As the making and quality of bread had been controlled to this point, so were the skills of biscuit-making through the craft guilds. As the supply of sugar began, and the refinement and supply of flour increased, so did the ability to sample more leisurely foodstuffs, including sweet biscuits. Early references from the Vadstena monastery show how the Swedish nuns were baking gingerbread to ease digestion in 1444. The first documented trade of gingerbread biscuits