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Highlighters are useful tools: you can use them to mark dates on a calendar, parts of the relevant text in a book or any other use where you need highlight something on paper. Thy influenced our lives so much that we can even find them in some computer programs. Read more about history of highlighters.
Calligraphy is an old art of drawing letters and symbols in a skillful way. Chinese calligraphy uses ink brush and ink to emphasize motion and represent texts that are charged with dynamic life. Read more about history of ink brush and calligraphy.
Mechanical pencils are also old invention dating even from 16th century. First ones were relatively simple mechanisms, only to become more complicated with time. Today we have mechanical pencils which can write and draw very precisely.
Reed pens are one of the first more sophisticated writing tools in history. They appeared after the carving tools and styluses and practically replaced them. They were not perfect and were later replaced with quills. Read more about history of reed pens.