Stylus

A stylus (plural: styli or styluses) is a writing utensil, or a small tool for some other form of marking or shaping, for example in pottery. It can also be a computer accessory that is used to assist in navigating or providing more precision when using touchscreens. It usually refers to a narrow elongated staff, similar to a modern ballpoint pen. Many styli are heavily curved to be held more easily. Another widely-used writing tool is the stylus used by blind users in conjunction with the slate for punching out the dots in Braille.

Styli were first used by the ancient Mesopotamians in order to write in cuneiform, Egyptians (Middle Kingdom), and the Minoans of Crete (Linear A and Cretan Hieroglyphic) made styli in various materials: reeds that grew on the sides of the Tigris and Euphrates rivers and in marshes and down to Egypt where the Egyptians used styli from sliced reeds with sharp points; bone and metal styli were also used. Cuneiform was entirely based on the "wedge-shaped" mark that the end of a cut reed made when pushed into a clay tablet, hence the name "cuneiform" from Latin cuneus = "wedge". The linear writings of Crete in the first half of the second millennium BC were made on sun dried clay tablets that were left to dry in order to become 'leather' hard before they were incised by the stylus. The linear nature of the writing was also dictated by the use of the stylus.

Read more about Stylus:  Etymology, Use in Arts, Use in Music Recording and Reproduction, Smartphones and Computing, Scientific Instruments