Tools of the Trade: The Sweater
There is evidence that folks were knitting clothing with various types of yarns as far back as the ancient Egyptians. However, the actual sweater didn't appear until the 19th century, in Great Britain. While people had figured out long ago that knit socks and leggings could help to keep a person warm, it seems that it took another 4,000 years or so to realize that arms and the upper torso could also be kept cozy in much the same way; hence, the sweater.
The first sweaters (pullovers) were made for the working classes—especially fishermen—and strictly for warmth and dryness: Wool kept a person dry and warm, even when wet. The various sweater weaves were created, legend has it, in order to identify a man by the unique stitch of his sweater; more likely, women just knitted the garments differently from one another.
The military quickly picked up on the idea: The close-fitting jacket-like sweater was made famous by James Brudenell, the 7th Earl of Cardigan, who led the charge of the Light Brigade. The large drop sleeve was a matter of practicality when Crimean War officer Fitzroy James Henry Somerset, Lord Raglan, lost his arm and needed a coat that he could easily put on and take off.