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    Benjamin Thompson, Physicist, Inventor  
Sir Benjamin Thompson, Count Rumford, was an American-born British physicist and inventor whose challenges to established physical theory were part of the 19th century revolution in thermodynamics. He also served as a Lieutenant-Colonel in...
 
    François Le Vaillant, French Explorer  
François Le Vaillant was a French explorer, collector and ornithologist. Hugely popular in his lifetime for his engaging and colourful travel accounts, Le Vaillant is best known today for his spectacular books of ornithology, but his reputa...
 
    Joseph Proust, Chemist  
Joseph Louis Proust was a French chemist. Proust’s largest accomplishment into the realm of science was disproving Berthollet with the law of definite proportions, which is sometimes also known as Proust's Law. Proust studied copper carbona...
 
    Alexander Hamilton, Founding Father USA  
Alexander Hamilton was a Founding Father, soldier, economist, political philosopher, one of America's first constitutional lawyers and the first United States Secretary of the Treasury. As Secretary of the Treasury, Hamilton was the prim...
 
    Johann Friedrich Pfaff, Mathematician  
Johann Friedrich Pfaff was a German mathematician. He was described as one of Germany's most eminent mathematicians during the 19th century. He studied integral calculus, and is noted for his work on partial differential equations of the fi...
 
    Malthus, Principle of Population  
The Reverend Thomas Robert Malthus was a British scholar, influential in political economy and demography. Malthus popularized the economic theory of rent. Malthus has become widely known for his theories about population and its increase o...
 
    John Dalton, First Useful Atomic Theory  
John Dalton was an English chemist, meteorologist and physicist. He is best known for his pioneering work in the development of modern atomic theory, and his research into colour blindness. He developed the first useful atomic theory of...
 
    Georges Cuvier, French Naturalist  
Georges Cuvier was a renowned French naturalist and zoologist considered the founder of comparative anatomy and vertebrate paleontology. He originated a system of zoological classification that comprised four phyla based on differences in s...
 
    Alexander von Humboldt, Naturalist  
Alexander von Humboldt was a German naturalist and explorer, and the younger brother of the Prussian minister, philosopher, and linguist, Wilhelm von Humboldt (1767-1835). Humboldt's quantitative work on botanical geography was foundational...
 
    Manuel Belgrano, Liberator Argentina  
Manuel José Joaquín del Corazón de Jesús Belgrano, usually referred to as Manuel Belgrano, was an Argentine economist, lawyer, politician, and military leader. He took part in the Argentine Wars of Independence and created the Flag of Argen...
 
    David Thompson, Canadian Explorer  
David Thompson was an English-Canadian fur trader, surveyor, and map-maker, known to some native peoples as "Koo - Koo - Sint" or "the Stargazer". Over his career he mapped over 3.9 million square kilometres of North America and for this ha...
 
    Du Pont, Founder DuPont Company - 1802  
Among the young men whom Antoine-Laurent Lavoisier deeply influenced was Eleuthère Irénée du Pont (1771–1834), the founder of the DuPont Company. His father, Pierre Samuel du Pont—an economist, government official, and publicist—was among t...
 
    Saint-Hilaire, Naturalist  
Étienne Geoffroy Saint-Hilaire was a French naturalist who established the principle of "unity of composition". He was a colleague of Jean-Baptiste Lamarck and expanded and defended Lamarck's evolutionary theories. Geoffroy's scientific vie...
 
    George Cayley, Father of Aviation  
Sir George Cayley, 6th Baronet was a prolific English engineer and one of the most important people in the history of aeronautics. Many consider him the first true scientific aerial investigator and the first person to understand the underl...
 
    Robert Brown, British Botanist  
Robert Brown, Scottish botanist and botanical explorer. In 1801 he went as a naturalist on one of Matthew Flinders's expeditions to Australia, returning (1805) to England with valuable collections. In his Prodromus florae Novae Hollandiae e...
 
       
 
         
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