OR

01 Aug, 1744
18 Dec, 1829
85 years
Age-related complications
French
Male
He believed internal forces drove evolution: Unlike Darwin's focus on external selection pressures, Lamarck proposed internal drives pushed organisms towards complexity.
He coined the term "invertebrate": Prior to Lamarck, invertebrate animals lacked a unifying designation.
He opposed spontaneous generation: While some believed life spontaneously arose from non-living matter, Lamarck argued for continuous descent from earlier life forms.
His theory influenced artists and thinkers: Lamarck's ideas resonated with writers like Mary Shelley and artists like Etienne Geoffroy Saint-Hilaire, inspiring creative explorations of evolution.

27 Apr, 1913
01 Aug, 2004
91 years
Respiratory failure
American
Male
Abelson co-discovered the element neptunium in 1940, working with Edwin McMillan at the University of California, Berkeley
Abelson wrote a report in 1946 that provided a blueprint for the Navy's first nuclear-powered submarine, the USS Nautilus, launched in 1955
He developed the liquid thermal diffusion process for separating uranium isotopes, which was crucial for the Manhattan Project and the creation of the atomic bomb
He played a major role in the discovery of the element neptunium.
In 1933 Abelson received his bachelor of science degree in chemistry from Washington State University.

September 2025: Honoring the Lives and Legacies of Cultural, Creative, and Sporting Icons September 2025 was a month marked by profound loss across the worlds of art, music, film, sport, fashion, science, and public life…