Glass molded by
ancient Roman craftsmen was found during excavations in the Western European
colonies of Rome, as well as in the East right up to the Black Sea coast. After
the collapse of the Roman Empire, this craft fell into disrepair and the mode
of production was forgotten and never resumed. A new window glass manufacturing method was developed several centuries later, i.e. in the Middle Ages.
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First Window Pane |
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Glassblower at His Work |
On the territory
of the ancient Slavic state, archaeologists repeatedly found fragments of glass
circles with a diameter of 200 - 250 mm with well-fixed edges. Scientists agree
that these glass circles served for glazing the windows of large public
buildings, such as the church of Kyiv Sofia and other churches of pre-Mongol
Russia. It is believed that the method of their production was as follows. A
vessel resembling a cone-shaped carafe was blown in shape. The bottom of this
“decanter” was cut off and the edge was wrapped.