Re: AW: VMs: Drawing circles

["Rafal T. Prinke" <rafalp@xxxxxxxxxx>]

Robert Flossmann wrote:
> 
> I don't quite know to what period of time this refers to, but I have heard
> that they used to make flat sheets of glass by blowing a cylinder which
> would then be cut and straightened out.

This timeline:

  http://www.tangram.co.uk/TI-Glazing-Glass_Timeline.html

mentions 1226 and 1330 as the time when this technology was
invented - and 1850 when it ceased to be used.

Best regards,

Rafal
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