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Gel pens are one of the most modern writing tools and are beloved for their strong lines and nice colors. They are used by both professionals and amateurs because of these characteristics. Read more about history of gel pen.
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.
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.
Quills were the most sophisticated writing instruments for a long time (some 15 centuries). Many large birds gave their contribution to the spreading of knowledge until metal pens replaced feathers in writing. Read more about history of quill pens.