Buttons, used first in India
Buttons were first used in Mohenjo-daro for ornamental purpose rather than for fastening. They were first used in the Indus Valley Civilization by 2000 BCE.
Some buttons were carved into geometric shapes and had holes pierced into them so that they could be attached to clothing by using a thread. Ian McNeil (1990) holds that: “The button, in fact, was originally used more as an ornament than as a fastening. It is made of a curved shell and about 5000 years old.
The size of the button depends on its use. Shirt buttons are generally small, and spaced close together, whereas coat buttons are larger and spaced further apart. Buttons are commonly measured in lignes (also called lines and abbreviated L), with 40 lignes equal to 1 inch. For example, some standard sizes of buttons are 16 lignes (10.16 mm, standard button of men’s shirts) and 32 lignes (20.32 mm, typical button on suit jackets).