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    Hayden, Founding of Yellowstone National Park  
Dr. Ferdinand Vandeveer Hayden was an American geologist noted for his pioneering surveying expeditions of the Rocky Mountains in the late 19th century. He was also a physician who served with the Union Army during the Civil War. In 1871...
 
    Maxwell, Light is an Electromagnetic Wave  
James Clerk Maxwell was a Scottish mathematical physicist. His most notable achievement was to formulate the classical theory of electromagnetic radiation, bringing together for the first time electricity, magnetism, and light as manifestat...
 
    John Pemberton, Founder of Coca-Cola  
John Stith Pemberton was an American pharmacist who is best known for being the founder of Coca-Cola. In May 1886, he developed an early version of a beverage that would later become world-famous as Coca-Cola, but sold his rights to the dri...
 
    Paul du Chaillu, Anthropologist  
Paul Belloni du Chaillu was a French-American traveler and anthropologist. He became famous in the 1860s as the first modern outsider to confirm the existence of gorillas, and later the Pygmy people of central Africa. He later researched th...
 
    Eduard Suess, Discovery Supercontinent  
Eduard Suess was a geologist who was an expert on the geography of the Alps. He is responsible for discovering two of the Earth's major now-lost geographical features, the supercontinent Gondwana (proposed 1861) and the Tethys Ocean. Sue...
 
    Lewis Carroll, Author Alice in Wonderland  
The Reverend Charles Lutwidge Dodgson, better known by the pen name Lewis Carroll, was an English author, mathematician, logician, Anglican clergyman, and photographer. His most famous writings are Alice's Adventures in Wonderland and its s...
 
    Nordenskiöld, Crossing Northeast Passage  
Baron (Nils) Adolf Erik Nordenskiöld also known as A. E. Nordenskioeld was a Finnish-Swede geologist, mineralogist and arctic explorer, and a member of the prominent Finland-Swedish Nordenskiöld family of scientists. Born in the Grand Duchy...
 
    Alfred Nobel, Inventor of Dynamite  
Alfred Bernhard Nobel was a Swedish chemist, engineer, inventor, businessman, and philanthropist. Known for inventing dynamite, Nobel also owned Bofors, which he had redirected from its previous role as primarily an iron and steel produc...
 
    Von Richthofen, Traveller Silk Roads  
Ferdinand Freiherr von Richthofen was a German traveller, geographer, and scientist. He traveled or studied in the Alps of Tyrol and the Carpathians in Transylvania. In 1860, he joined the Eulenburg Expedition, a Prussian expedition which...
 
    Mendeleev, Creator Table of Elements  
Dimitri Mendeleev, was a Russian chemist. He is credited as being the primary creator of the first version of the periodic table of elements. Unlike other contributors to the table, Mendeleev predicted the properties of elements yet to be d...
 
    August Weismann, Evolutionary Biologist  
Friedrich Leopold August Weismann was a German evolutionary biologist. Ernst Mayr ranked him the second most notable evolutionary theorist of the 19th century, after Charles Darwin. Weismann became the Director of the Zoological Institute a...
 
    Ernst Haeckel, German Naturalist  
Ernst Haeckel was an eminent German biologist, naturalist, philosopher, physician, professor and artist who discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms, and coined many terms...
 
    Lombroso, Italian Criminologist  
Cesare Lombroso was an Italian criminologist and physician, founder of the Italian School of Positivist Criminology. Lombroso rejected the established Classical School, which held that crime was a characteristic trait of human nature. Inste...
 
    Johannes van der Waals, Physicist  
Johannes Diderik van der Waals was a Dutch scientist and thermodynamicist famous for his work on the equation of state for gases and liquids which describe the relation between the pressure, volume, and temperature of fluids (gases and liq...
 
    John Muir, Father of the National Parks  
John Muir was a Scottish-American naturalist, author, and early advocate of preservation of wilderness in the United States. His letters, essays, and books telling of his adventures in nature, especially in the Sierra Nevada mountains of Ca...
 
       
         
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