Stationary facts:

Stationary was invented in ancient Egypt around 4000 BC with the use of papyrus paper, a material made from the stem of the papyrus plant and reed pens that were made from the hollow stem of a reed, cut at an angle, it was made to record and communicate information, as well as for artistic and religious purposes.

Proto-paper had been around in various forms for at least 200 years before a man named Cai Lun perfected the recipe, he was an inventor and politician who served in the court of Eastern Han Emperor He, in ancient times (at least in China) records were kept either on bamboo - which was heavy - or on silk - which was expensive. Cai Lun’s paper changed that.

Facts about coloured pens:
The first commercially successful colored pen was introduced by the Japanese company Pentel in 1963. Pentel launched the "Sign Pen," which was a felt-tip pen with water-based ink in various colors. The Sign Pen became popular for its vibrant colors and versatility, as it could be used for writing, drawing, and coloring.

Around the same time, other companies also started producing their own versions of colored pens. For example, the German company Staedtler introduced their "Lumocolor" line of marker pens in 1966, which offered a wide range of colors and quickly gained popularity.