Katapostrophe

History of Watercolor Paper
First, some interesting facts about paper, that I found at http://www.watercolorpainting.com/papers.htm
The oldest surviving piece of paper in the world was discovered by archeologists in 1957 in a tomb near Sian in Shensi province, China (Temple 1986). It is about 10 cm square and can be dated precisely between the years 140 and [...]