Windows—glass

“[Ether 2:23; 3:1] This would make the invention of glass far older than anyone dreamed it was until the recent finding of such objects as Egyptian glass beads from the end of the third millennium B.C… . We need not be surprised if the occurrences of glass objects before the sixteenth century B.C. are few and far between, for glass rots, like wood, and it is a wonder that any of it at all survives from remote antiquity. There is all the difference in the world, moreover, between few glass objects and none at all.” (Hugh Nibley, Lehi in the Desert, pp. 213-215)