Primitive windows were just holes in a wall. Later, windows were covered with animal hide, cloth, or wood.
The Romans were the first to use glass for windows. In Alexandria ca. 100 AD, cast glass windows, albeit with poor optical properties, began to appear.
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The Romans were the first to use glass for windows. In Alexandria ca. 100 AD, cast glass windows, albeit with poor optical properties, began to appear.
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The Romans has stained glass objects but stained glass windows were not made until around 800AD
This came from wikipedia
http://en.wikipedia.org/wiki/Stained_glass#History
http://en.wikipedia.org/wiki/Medieval_stained_glass
