By mass-producing his inventions, the American inventor and industrialist George Eastman (1854-1932) promoted photography as a popular hobby. He was also a benefactor of educational institutions.

George Eastman was born in Waterville, N.Y., on July 12, 1854, and educated in Rochester public schools. He advanced from messenger to bookkeeper in the Rochester Savings Bank by 1877. Frugal with money--his only extravagance amateur photography--he spent his savings on cameras and supplies and went to Mackinac Island. When photographic chemicals ruined his packed clothes, he became disgusted with the wet-plate process.

In the 1870s American photography was still slow, difficult, and expensive. Equipment included a huge camera, strong tripod, large plateholder, dark tent, chemicals, water container, and heavy glass plates. Eastman experimented with dry-plate techniques. He was the first American to contribute to photographic technology by coating glass plates with gelatin and silver bromide. In 1879 his coating machine was patented in England...