Stained glass, in general, refers to both the colored glass and also the craft or art of making it. The color is obtained by adding metallic salts such as copper, gold, and cobalt to molten glass. The colored glass pieces is then stuck together using lead strips – to form designs, patterns, or pictures and held in place with the aid of a rigid frame. The same principle works for stained glass window panes as well as stained glass lamps.
The most interesting aspect with stained glass making is the engineering skills required to assemble the collage. When assembled, now as a single entity, the stained glass piece has to stand the weight of its own without cracking at any point. In the case of stained glass windows, it also has to withstand the wind pressure continuously. No wonder, even now, stained glass manufacture remains a skilled art that requires training and precision.
Looking back at the history of stained glass making, it becomes evident that historians from world over had failed to register when exactly humans have mastered the art of stained glass manufacture with precision, even though the history of stained glass lamps is known with more...