1632day.year

Philippe van Lansberge

(1561 - 1632)

Dutch astronomer and mathematician

Dutch astronomer and mathematician
Philippe van Lansberge was a 17th-century Dutch astronomer and mathematician who championed the Copernican heliocentric model and published influential astronomical tables.
Philippe van Lansberge (1561–1632) was a leading figure of the Dutch Golden Age in astronomy and mathematics. A staunch advocate for the Copernican heliocentric system, he challenged geocentric orthodoxy of his time. He published detailed astronomical tables that improved predictions of planetary movements and eclipses. His works were widely used by navigators and scholars, spreading heliocentric ideas across Europe. He maintained correspondence with other contemporary scientists, influencing the study of celestial mechanics. His pioneering efforts helped pave the way for future astronomers such as Kepler and Galileo.
1632 Philippe van Lansberge
1695day.year

Barthélemy d'Herbelot

(1625 - 1695)

French orientalist and academic

French orientalist and academic
Barthélemy d'Herbelot was a French orientalist whose 'Bibliothèque orientale' became a cornerstone of European Middle Eastern studies.
Barthélemy d'Herbelot (1625–1695) was a French scholar celebrated for his comprehensive work on Eastern languages and cultures. His magnum opus, the Bibliothèque orientale, compiled translations and entries on Islamic history, literature, and science. D'Herbelot studied Arabic, Persian, and Turkish, becoming one of the era's foremost Euro-Oriental scholars. Appointed to the Collège Royal (later Collège de France), he influenced generations of orientalists and linguists. His meticulous research brought Middle Eastern knowledge to Western Europe during the Age of Enlightenment. D'Herbelot's scholarship remains a vital reference in the history of oriental studies.
1695 Barthélemy d'Herbelot
1745day.year

Étienne Fourmont

(1683 - 1745)

French orientalist and academic

French orientalist and academic
French scholar and pioneering orientalist celebrated for his studies of Asian languages and antiquities.
Born in Paris in 1683, Étienne Fourmont became one of the first European scholars to systematically study Chinese and other Eastern languages. A professor at the Collège Royal, he published influential works on Chinese grammar, vocabulary, and inscriptions, helping to introduce Asian philology to Western academia. His meticulous collection of manuscripts and coins expanded European understanding of Asian history and culture. Although later criticized for alleged plagiarism, his contributions laid the foundation for modern sinology. He held prestigious academic positions until his death in 1745, leaving a lasting impact on Oriental studies.
1745 Étienne Fourmont
1779day.year

Nathan Alcock

(1707 - 1779)

English physician

English physician
English physician and medical writer known for his lectures and treatises on human anatomy and physiology.
Born in 1707 in Cheshire, Nathan Alcock studied medicine at Cambridge and became known for his lectures on anatomy and physiology. He practiced medicine in London and Newcastle, emphasizing empirical observation and clinical teaching. A fellow of the Royal Society, he published essays on medical theory, respiration, and the importance of hygiene. His engaging teaching style attracted a wide audience of students and physicians. Alcock died in 1779, remembered for advancing early modern medical education and practice.
1779 Nathan Alcock
1864day.year

George Boole

(1815 - 1864)

English mathematician and philosopher

English mathematician and philosopher
English mathematician and philosopher who developed Boolean algebra, laying the groundwork for modern computer science.
George Boole was an English mathematician and philosopher born in 1815 in Lincoln, England. He is best known for formulating Boolean algebra, which became fundamental to digital circuit design and computer programming. Additionally, Boole authored 'An Investigation of the Laws of Thought' in 1854, pioneering symbolic logic. His theories bridged algebra and logic, influencing information theory, computer science, and artificial intelligence. Despite limited formal education, he became the first professor of mathematics at Queen's College, Cork. He died in 1864, but his legacy endures in the binary systems that power modern technology.
1864 George Boole
1886day.year

Isaac Lea

(1792 - 1886)

American conchologist, geologist, and publisher

American conchologist geologist and publisher
American conchologist, geologist, and publisher noted for describing over a thousand species of freshwater mussels.
Isaac Lea was born in 1792 in Wilmington, Delaware. As a conchologist and geologist, he described more than 1,800 species of mollusks, pioneering studies of freshwater mussels. He co-founded the publishing firm Lea & Blanchard, producing scientific works and periodicals. An esteemed member of various scientific societies, he contributed to early geological surveys in North America. Lea's extensive shell collection and publications laid important foundations for malacology. He passed away in 1886, remembered as a leading 19th-century naturalist and publisher.
1886 Isaac Lea
1894day.year

Pafnuty Chebyshev

(1821 - 1894)

Russian mathematician and theorist

Russian mathematician and theorist
Russian mathematician renowned for Chebyshev polynomials and inequalities, foundational in approximation theory.
Pafnuty Chebyshev was born in 1821 in Okatovo, Russia. He made groundbreaking contributions to mathematics, including the development of Chebyshev polynomials and inequalities. His work in probability theory, number theory, and approximation theory influenced generations of mathematicians. Chebyshev served as a professor at the University of St. Petersburg and mentored many future scholars. His legacy endures in analytic number theory and the study of orthogonal polynomials. He died in 1894, leaving an indelible mark on mathematical analysis and mechanics.
1894 Pafnuty Chebyshev
1932day.year

Gertrude Jekyll

(1843 - 1932)

British horticulturist and writer

British horticulturist and writer
Gertrude Jekyll was a British horticulturist, garden designer, and prolific writer who revolutionized garden aesthetics.
Born in 1843 in London, Jekyll studied art at the South Kensington School and developed a passion for plants and design. She became a leading figure in the Arts and Crafts movement, emphasizing harmony between architecture and nature. Collaborating with architect Sir Edwin Lutyens, she designed over 100 iconic gardens featuring bold color schemes and naturalistic layouts. Her influential books, including "Home and Garden" and "Wood and Garden," introduced modern planting theories and techniques. Jekyll wrote more than 15 books and hundreds of articles, guiding gardeners around the world. She died in 1932, leaving a legacy that continues to inspire garden designers and horticulturists globally.
1932 Gertrude Jekyll
1937day.year

Hans Molisch

(1856 - 1937)

Czech-Austrian botanist and academic

Czech-Austrian botanist and academic
Hans Molisch was a Czech-Austrian botanist famed for the Molisch test in phytochemistry and his contributions to plant physiology.
Born in 1856 in Austrian Silesia, Molisch studied botany at the University of Vienna. He held professorships at the universities of Basel, Halle, Vienna, and Prague, mentoring generations of scientists. Molisch developed the Molisch test, a sensitive chemical assay for detecting carbohydrates in plant tissues. His research spanned plant physiology, cytology, and phytochemistry, with key publications on cell organization and metabolism. He served as president of the German Botanical Society and edited prominent scientific journals. Molisch’s methods remain fundamental in botanical and biochemical research. He died in 1937, leaving a lasting impact on the study of plant science.
1937 Hans Molisch
2001day.year

Betty Holberton

(1917 - 2001)

American computer scientist and programmer

American computer scientist and programmer
Pioneering American computer scientist and one of the original programmers of the ENIAC machine.
Betty Holberton was a trailblazer in the early days of computing, recognized as one of the six primary programmers of ENIAC, the world's first general-purpose electronic digital computer. Born in Philadelphia, she helped develop fundamental programming techniques and authored some of the first algorithms for sorting and data processing. Later, Holberton contributed to the development of UNIVAC I and worked on the creation of early programming languages, including COBOL. She co-designed the first linkers and advanced subroutine techniques, laying groundwork for modern software engineering. Holberton received numerous honors for her contributions and remained active as a mentor and speaker on the history of computing. Her innovative spirit helped shape the field and opened doors for women in technology.
Betty Holberton
2013day.year

John Cornforth

(1917 - 2013)

Australian-English chemist and academic, Nobel Prize laureate

Australian-English chemist and academic Nobel Prize laureate
British-Australian chemist and Nobel Prize laureate recognized for his work on enzyme stereochemistry.
John Cornforth was a British-Australian chemist awarded the 1975 Nobel Prize in Chemistry for his research on the stereochemistry of enzyme-catalyzed reactions. Born in Sydney, he later moved to England, earning his doctorate from Oxford University. Despite being deaf from childhood, Cornforth excelled in studying how enzymes shape molecular structures. His work illuminated the mechanisms by which biological catalysts control the three-dimensional arrangement of atoms. He held academic positions at universities worldwide, mentoring generations of scientists. Cornforth also authored influential papers on biosynthesis and reaction mechanisms in living organisms. His legacy endures in the fields of organic chemistry and biochemistry, inspiring ongoing research.
2013 John Cornforth Nobel Prize
2018day.year

David Weatherall

(1933 - 2018)

English physician, geneticist, and academic

English physician geneticist and academic
British physician and geneticist renowned for pioneering research on blood disorders.
Sir David Weatherall was a British physician and molecular geneticist whose research transformed the understanding of blood disorders. He made groundbreaking discoveries on the genetic basis of thalassemia and other hemoglobinopathies. Weatherall founded the Weatherall Institute of Molecular Medicine at the University of Oxford, fostering interdisciplinary research in genetics and medicine. He authored over 1,000 scientific papers and received numerous honors, including knighthood in 1987. His work led to improved diagnostic techniques and treatments for inherited blood diseases worldwide. Weatherall remained active in research and mentorship until his passing in 2018.
2018 David Weatherall