In manuscripts

History

In communication

Drawing is one of the oldest forms of human expression, with evidence for its existence preceding that of written communication.^[5] It is believed that drawing was used as a specialised form of communication before the invention of the written language,^[5][6] demonstrated by the production of cave and rock paintings around 30,000 years ago (Art of the Upper Paleolithic).^[7] These drawings, known as pictograms, depicted objects and abstract concepts.^[8] The sketches and paintings produced by Neolithic times were eventually stylised and simplified in to symbol systems (proto-writing) and eventually into early writing systems.

In manuscripts

Before the widespread availability of paper, 12th-century monks in European monasteries used intricate drawings to prepare illustrated, illuminated manuscripts on vellum and parchment. Drawing has also been used extensively in the field of science, as a method of discovery, understanding and explanation.

In science

Drawing diagrams of observations is an important part of scientific study.

In 1609, astronomer Galileo Galilei explained the changing phases of Venus and also the sunspots through his observational telescopic drawings.^[9] In 1924, geophysicist Alfred Wegener used illustrations to visually demonstrate the origin of the continents.^[9]

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