How were windows made in the past (dark ages)?

The glass used in windows and stained glass pieces in the middle ages was either rolled, cast or blown. Rolling involves pouring molten glass on a table and feeding it into a device sort of like a printing press. This leaves a rippled, textured surface. read more

Windows were made of oiled cloth or a tripe like substance. Openings for light in the castle tended to be either loops or windows. The loops did not provide an overall good view, and windows offered little protection for defenders. In the basement and first floor areas there were no windows and very few loops. read more

The term is used in this sense (often in the singular) to reference the Bronze Age collapse and the subsequent Greek Dark Ages, the dark ages of Cambodia (c. 1450-1863), and also a hypothetical Digital Dark Age which would ensue if the electronic documents produced in the current period were to become unreadable at some point in the future. read more