What Is the History of Alchemy?

Mediaeval craftsmen were extremely skilled in glass working. This was a time when very sophisticated stained glass using all sorts of minerals and chemicals, was developed. For example, the gold work in nor berg was probably the best in the world. And these various sorts of crafts that involved complicated materials and chemical reactions, like glazing and metal work, were seen as falling under the umbrella of alchemy. Many regarded alchemy as truly the highest craft. It led to all sorts of great insights in glass, aramics, also medicine.