What Happened This Year 1725

People Who Died in 1725

Nicolaas Hartsoeker

Dutch mathematician and physicist
Born
March 26th, 1656 369 years ago
Died
1725 300 years ago — 69 years old

Born in the mid-17th century, contributions to mathematics and physics included work on optics and the development of the micrometer. Hartsoeker is also recognized for establishing the first approximate calculations of planetary distances. His research laid foundational groundwork for further advancements in scientific understanding through precise measurement techniques.

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Nikita Demidov

Russian industrialist and entrepreneur
Born
April 5th, 1656 369 years ago
Died
1725 300 years ago — 69 years old

An industrialist established major ironworks in Russia during the 18th century. Played a crucial role in the development of the Russian iron industry, significantly contributing to the economy. Expanded mining operations and produced various metal goods which supported military and construction efforts. His efforts laid the foundation for the Demidov dynasty, which continued to influence Russian industry for generations.

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