In the early Regency era at the beginning of the 1800’s…

…it was discovered the body was in proportion to head measurements.  W.H. Wampum, a German tailor was fascinated with this law of Anthropometrics, and began to work with the idea of drafting patterns to size rather than draping on the body.

(The study of anthropometrics yields body proportion.  Below: Today, it is used in the design of work spaces)