Page 30 - Encyclopedia of Chemical Compounds 3 Vols

Timeline of the Development of Chemical Compounds

1879 • Saccharin, the first artificial sweetener discovered, is
synthesized accidentally by Johns Hopkins researchers
Constantine Fahlberg and Ira Remsen.
1879 • Riboflavin is first observed by British chemist Alex-
ander Wynter Blyth.

1883 • Copper(I) oxide is the first substance found to have
semiconducting properties.

1886 • American chemist Charles Martin Hall invents a
method for making aluminum metal from aluminum
oxide, which drastically cuts the price of aluminum.
1889 • French physiologist Charles E. Brown-Se ´quard per-
forms early experiments on the effects of testosterone.
1890s • Commercial production of perchlorates begins.

1890s–early 1900s • British chemists Charles Frederick Cross,
Edward John Bevan, and Clayton Beadle identify the
compound now known as cellulose. They also develop
rayon.
Late 1890s • Artificial methods of the production of pure
vanillin are developed.
1901 • The effects of fluorides in preventing tooth decay are
first observed.

1888 1896
George Eastman Henry Ford 1901
introduces the assembles the The first Nobel
Kodak camera. first motor car. prizes are awarded.
. . .

1890 1900 1910

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