Dovetail joint joint technique probably pre-dates written history. Some of the earliest known examples of the dovetail joint are in ancient Egyptian furniture entombed with mummies dating from First Dynasty, as well as the tombs of Chinese emperors. The dovetail design is an important method of distinguishing various periods of furniture. In Europe the dovetail joint is sometimes called a swallowtail joint, a culvertail joint, or a fantail joint. The dovetail joint is very strong because of the way the 'tails' and 'pins' are shaped. This makes it difficult to pull the joint apart and virtually impossible when glue is added. This
Mitre of a synod of bishops. During the 18th century (and in a few cases the 19th), soldiers designated as grenadiers in various northern European armies wore a mitre (usually called a "mitre cap") similar in outline to those worn by western bishops. As first adopted in the 1680s this cap had been worn instead of the usual broad-brimmed hat to avoid the headdress being knocked off when the soldier threw a grenade. The hand-grenade in its primitive form had become obsolete by the mid-18th century but grenadiers continued as elite troops in most European armies, usually retaining the mitre cap