History of Stained Glass Italian stained glass and History of stained glasses There are many different types of glass. Common window glass is made from a mixture of sodium and calcium silicates, which are made by melting sand, sodium carbonate (soda ash), and limestone together. When the mixture cools, glass is formed. You can also make glass by heating silica to a high enough temperature, but by adding sodium carbonate the melting point is reduced. Pyrex is borosilicate glass. This is a harder glass than window glass. It is used for such things a cookware and labware.
The technique of making stained glass is an invention of the 9th and 10th centuries although the use of colored glass began in the Roman times. A model, the same size as the section it represented, was made on a wooden panel covered with chalk or on cloth.Italian stained glass and History of stained glasses Italian stained glass and History of stained glasses The design was drawn using a lead or tin point. The different colors of glass were produced by adding mineral salts or oxides of different metals to the sand that the glass is made from. If the color of the glass was too dark for light to pass through, pieces were made by fusing together colored glass with a thicker clear one. This is called flashing. Glass is then cut to match the shapes on the window.
This is a copy of a medieval stained glass done by Kristina Holyfield. Although the glass is colored it is usually necessary to also paint the glass. This paint is known as grisaille which is made of a powder of crushed glass mixed with metallic salts and other minerals. Italian stained glass and History of stained glasses Gums or resins are sometimes added to help the mixture stick to the glass as it is being painted. The use of colored glass for filling windows dates from Roman times, when blown glass, which can be very thin, began to replace molded glass for many purposes. Stained glass may have began in the time of the emperor Charlemange. From the late 11th century through the 13th century, stained glass was the most important of the visual arts.
The earliest surviving stained glass dates back to the 12th century. Panels of glass were intended to have the look of precious stones. France and Germany were the major creative centers at this time. Abbot Sugar hired masters from different regions to paint windows for the Abbey of St. Denis. These windows helped introduce themes that became very popular such as the Tree of Jesse which shows the genealogy of Christ. Other early stained glass portraits include the Crucifixion window in the Puitiers Cathedral in France. The windows of St. Remi in Reims, France, which were mostly destroyed in World War I, are considered the most advanced point of glass painting in the 12th Century. Toward the end of the 12th Century, the range of colors became darker. The best example of the 13th Century is the Chartres Cathedral in France. “The walls of the Cathedral present a feeling of being made entirely of fragile exquisite stained glass. When the sunlight streams through the windows, it creates a sensation of light flooding the interior.” The rapid developments in painting during the 14th century immediately affected stained glass. The use of color changed. France was no longer the principal center of stained glass. The great Italian stained-glass works of the 14th Century are generally as much the work of painters as they are of master glaziers. The painters in Italy and Flanders created far-reaching changes in stained glass. Throughout Europe, stained glass has become an intricate art form that has helped shape society from past generations and should continue to develop and influence for generations to come. STAINED GLASSES You can learn how to make your own stained and leaded glass panel. Italian stained glass and History of stained glasses This course teaches you the skills and techniques you need to see your project through from design to installation. In the process, you also learn about the history and future of this art form. And before you even start, you have the opportunity to watch and observe the creation of a glass pane. Later, take home a piece of tangible beauty and learn to appreciate an artistic craft that deserves to flourish in the years to come.
The Roman Empire introduced glassmaking in the form of vases, vessels, and bottles to the continent of Europe over 2000 years ago. The fall of the Roman Empire led to a brief decline in glassmaking, Italian stained glass and History of stained glasses but the city of Venice soon reestablished itself as an international trading center, which attracted glasswork artisans from many areas east of Europe. The first archeological evidence of glassmaking in the area was found on the island of Torcello and dates to the 7th century. Historical documentation of the Italian glassmakers can be found as far back as the 10th century, securely placing Venice as the hub of glass artistry for the European continent. Government rules concerning glassmakers came in to existence starting in the 12th century, but it wasn’t until 1271 that the Capitulare de Fiolaris, the first statutes about the art of glassmaking were created. In 1292 a city ordinance that changed Venetian glassmaking forever. Because glasswork studios had become the common cause of municipal fires (in fact the Great Fire Of London is commonly believed to have started in a glassworks studio), the city of Venice banned the opening of new glassmaking houses in the city limits. In effect, glassmaking was banned to Murano…an island located in the Venetian lagoon. Italian stained glass and History of stained glasses
This had the added effect of keeping Italian glassmaking secrets from getting out to the rest of the world. While the word Murano soon became synonymous with glasswork, working on Murano essentially became a banishment from the rest of the world…glassworkers were forbidden to teach trade secrets to outsiders and those who attempted to leave were threatened with the death penalty. During this time period, Murano glass makers were the only artisans in Europe who made mirrors. Recipe books were created and adapted over generations, and held the secrets to such Murano specialties as cristallo and lattimo glasswork. Cristallo glass is a perfectly clear glass that is easily moldable when hot, but also cools very quickly…allowing it to be used in intricate, paper-thin designs. Lattimo glass is an opaque milk glass that was often fused with cristallo glass to make lace-like patterns and decorative finishes. Murano made glass reigned supreme up until the 18th century when the heavier lead-based English glass became very fashionable among the art-collecting elite. Italian stained glass and History of stained glasses