context: The glass collection covers 4000 years of glass making, and has over 6000 items from Africa, Britain, Europe, America and Asia. The earliest glassware on display comes from Ancient Egypt and continues through the Ancient Roman, Medieval, Renaissance covering areas such as Venetian glass and Bohemian glass and more recent periods, including Art Nouveau glass by Louis Comfort Tiffany and Émile Gallé, the Art Deco style is represented by several examples by René Lalique. There are many examples of crystal chandeliers both English, displayed in the British galleries and foreign for example Venetian (attributed to Giuseppe Briati) dated c1750 are in the collection. The stained glass collection is possibly the finest in the world, covering the medieval to modern periods, and covering Europe as well as Britain. Several examples of English 16th-century heraldic glass is displayed in the British Galleries. Many well-known designers of stained glass are represented in the collection including, from the 19th century: Dante Gabriel Rossetti, Edward Burne-Jones and William Morris. There is also an example of Frank Lloyd Wright's work in the collection. 20th-century designers include Harry Clarke, John Piper, Patrick Reyntiens, Veronica Whall and Brian Clarke.
question: কত বছর ধরে ভি এন্ড এ গ্লাস কালেকশন চলছে?
answers: 4000 4000 years 4000