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.Wilhelm Rontgen was a German physicist and mechanical engineer. He is best remembered for producing and detecting X-rays for which he was honored with the first Nobel Prize in Physics in 1901. His discovery of X-rays remains one of the greatest achievements in the field of medical science.
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.Jean-Baptist-Point Du Sable is considered the first permanent non-Indigenous settler of the area that would later become known as Chicago, Illinois. He was of African descent and married to a Native American woman. He established a prosperous trading settlement and traded around the Great Lakes and in the Illinois Country. He is recognized as the "Founder of Chicago."
.Best known for his research on the Machu Picchu in the Peruvian Andes, American archaeologist Hiram Bingham III had learned mountaineering from his missionary father. Though not a professional archaeologist, he ventured into exploration after gaining an interest in South America while teaching South American history at Yale.
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.Paul Hermann Müller was a Swiss chemist known for his discovery of insecticidal qualities and the use of DDT in the control of vector diseases. He received the 1948 Nobel Prize in Physiology or Medicine for this work. He began his career as a research chemist and later became the Deputy Director of Scientific Research on Substances for Plant Protection.
Bernard Courtois was a French chemist. He is credited with isolating iodine and morphine. Interested in chemistry from a young age, he learned how to make potassium nitrate for gunpowder for the French Revolution. He later found work at the École Polytechnique in Paris. Later in life, he went into manufacturing high-quality iodine and its salts.
French chemist Anselme Payen is known for co-discovering the first enzyme diastase, and for discovering the carbohydrate cellulose. He broke the Dutch monopoly for borax by developing a method to synthesize borax from soda and boric acid; developed a method to determine nitrogen and methods for refining sugar; and invented a decolorimeter.
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