Timeless Vintage Schoolhouse Design - Decades ago bare bulbs first sought shelter in opaque glass globes which hung from classrooms, libraries, courthouse, and kitchen ceilings back in the early 1920s. With their interesting angular lines and practical light diffusing quality these hard-working school house lights became a popular choice anywhere a good task and ambient light was needed. As the demand for them increased the original white flare globes soon took on more geometric forms and fancier metal fitting. Most of these early classic fixtures used a kind of glass called milk glass. Milk glass was first called opal glass and was originally made in Venice in the early 16th century. Back then it came in blue, pink, yellow, brown, black, and of course white. The effect of milk glass happens when they are producing the glass by adding either tin dioxide or bone ash to give it the opal finish we all know. Today, schoolhouse-style vintage fixtures are still appreciate for their timeless good looks and style- and are a great addition to kitchens, baths, and other light starved areas of your house and especially when you want to give your space a retro flair.