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ANSWER: Silhouettes were popular in the 18th and early 19th centuries before the invention of photography. Named after Etienne de Silhouette, Louis XV's controller-general of finances, known for his hobby of cutting profiles from black paper, they eventually turned into an art form.
But silhouettes actually date from classical Greece where they graced Greek and Etruscan pottery and ancient Egyptian frescoes. Their fame came much later when they re-emerged during the 17th century as the "poor man's portrait."
There was a real need for accurate and affordable likenesses of loved ones that didn’t require lengthy sittings and could be produced in duplicate. The solution was the silhouette. Neo-Classicism caught hold in the early 19th century, further cementing the popularity of the silhouette and giving it artistic prestige.
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Professional silhouette-cutters, known as profilers, thrived, particularly in Europe where a distinctive and subtler style of silhouette portraiture evolved. Basic black British and American silhouettes had little adornment. Profilers from the Continent, particularly France, used colored and metallic inks to add highlights to the portraits and give them an illusion of being three-dimensional.
The golden age of the profiler occurred during the early 19th century when they achieved the same notoriety as painters.
By the 1830s, professional silhouette artists had abandoned free-hand techniques and started to employ devices such as specially designed "sitting" chairs, scaling tools, and the camera obscura in attempts to achieve accurate likenesses of their subjects. These mechanical aids enabled the operator to achieve almost photographic likenesses, but at the expense of artistry. Although most profilers signed their free-hand silhouettes, few of the later works produced using these mechanical techniques bear their maker's signature.
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By the mid-19th century the popularity of the silhouette had begun to decline. In an attempt to revive it, artists developed a variety of techniques to make them richer and more attractive, including the introduction of color, gilding and fancy backgrounds. But the silhouette's strength was in its simplicity. This fad, combined with the popularization of photography, helped to bring on the demise of the silhouette. The art form became nothing more than a fairground novelty where it has remained ever since.