A sock is a piece of clothing worn on the feet and often covering the
ankle or some part of the calf. Some types of shoes or boots are typically
worn over socks. In ancient times, socks were made from leather or matted
animal hair. In the late 16th century, machine-knit socks were first
produced. Until the 1800s, both man-made and machine-knit socks were
manufactured, but the latter technique become more common in the 19th
century.
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