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Louis Daguerre, was a French painter and physicist who invented the first practical process of photography, known as the daguerreotype. The first permanent photograph from nature was made in 1826/27 by Nicéphore Niépce but it was of poor quality and required eight hours exposure time. Niépce...

Marcus Daly (December 5, 1841 – November 12, 1900) was an Irish-born American businessman known as one of the three "Copper Kings" of Butte, Montana, United States. Prior to his copper career, Daly gained experience in the silver mines of the Comstock mines under the direction of John William...

Hank Day (1902-1985) was born in in Spokane, Washington, to Helen Dwyer and Harry Lawrence Day, and grew up in Burke, Idaho, site of the great Hercules mine. In 1905, the family moved to Wallace, Idaho where he remained with the exceptions of when he attended the University of California where,...

One of the leading English silversmiths in the first half of the 1700s, Paul de Lamerie was renowned for his technical proficiency and innovative designs using bold organic forms. De Lamerie's parents, French Huguenots, probably left France for religious reasons in the 1680s, emigrating to the...

Bartolome de Medina was a successful Spanish merchant who became fascinated with the problem of decreasing silver yields from ores mined in Spanish America. By the mid-sixteenth century, it was well known in Spain that American silver production was in decline due to the depletion of high-grade...

In 1526 Tarnowskie Góry in Silesia (southern Poland) was awarded the status of a free mining town, and in 1528, John II the Good, Duke of Opole, issued an ordinance known as the Ordunek Górny, granting the town a series of mining privileges. At the same time a mining authority was also...

The Dow of Dow-Jones is Charles Henry Dow, born Nov. 5, 1851, in Connecticut. He went into journalism, working for New England newspapers. His work impressed Charles Danielson, editor of the Providence (R.I.) Journal, and so in 1879 he assigned Dow to join a group of bankers and reporters who...