During the Middle Ages, furniture was held together with pegs, dovetails, mortise and tenon joints and a few nails.
Archaeologists have found hand made bronze nails from as far back as 3000 BC.
In the late 1890s, scalloped dovetails were the rage, but the trend shifted back to the classic triangular shape after a few years.
Hand-cut dovetailing was the default until 1860 when uniform machine-cut joints were introduced.
Boxy shapes with joined wood angles were connected by dovetailing, a fact that contributed to the intact state of the grave goods when the pyramids and burial chambers were excavated.
The massive horizontal stone lintels at Stonehenge were connected by dovetailing, more rounded than triangular.
An analysis of glue remnants could be the key to precisely defining the age of a hand-cut dovetailed antique.
Crawford has a degree in theater, is a certified Prana Yoga instructor, and writes about fitness, performing and decorative arts, culture, sports, business and education .
Dovetails are interlocking carved wood joints used in cabinetry to connect two pieces of wood -- drawer fronts and sides, cabinet or cupboard corners.
The technique produces a sturdy, long-lasting connection.
As Churchill noted, To improve is to change, to be perfect is to change often.
The ancient Egyptians and Romans used organic glue for wood furniture, especially with decorative veneer techniques, but like much advanced technology, glue for wood became a lost art after the collapse of Rome in 476 until the Renaissance, around 1400, when glue and veneer techniques reappeared.