Circa 2500 B.C.: Earliest known glass
Roman Times: Glass is drawn into fibers
1713: Rene de Reaumur makes spun glass fibers
1790s: Claude Chappe invents 'optical telegraph' in France
1841: Daniel Colladon demonstrates light guiding in jet of water Geneva
1842: Jacques Babinet reports light guiding in water jets and bent glass rods Paris
1853: Paris Opera uses Colladon's water jet in the opera Faust
1854: John Tyndall demonstrates light guiding in water jets, duplicating but not acknowledging Colladon
1873: Jules de Brunfaut makes glass fibers that can be woven into cloth
1880: Alexander Graham Bell invents Photophone, Washington
1880: William Wheeler invents system of light pipes to illuminate homes from an electric arc lamp in basement, Concord, Mass.
1884: International Health Exhibition in South Kensington district of London has first fountains with illuminated water jets, designed by Sir Francis Bolton
1887: Charles Vernon Boys draws quartz fibers for mechanical measurements
1887: Royal Jubilee Exhibition in Manchester has illuminated "Fairy Fountains" designed by W. and J. Galloway and Sons
1888: Illuminated fountains at Glasgow and Barcelona fairs
1888: Dr. Roth and Prof. Reuss of Vienna use bent glass rods to illuminate body cavities
1889: Universal Exhibition in Paris shows refined illuminated fountains designed by G. Bechmann