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Compared with other art mediums, colored pencil is relatively new. It appeared at the beginning of the 20th century. But that doesn’t mean it is any less worthy especially when combined with other mediums. Here you can read more about colored pencil history.
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.
Dip pens were one of the first mass-produced writing tools. They replaced quills and although an old invention they are still in use but more for drawing than for writing. Read more about history of dip pen.
Beginning of use of pen and ink marked the start of new era of easier recording of information. Without them, early scientific discoveries would be forgotten and development of humanity would be much slower.