1701day.year

Thomas Blackwell

(1701 - 1757)

Scottish historian and scholar

Scottish historian and scholar
Scottish classical scholar and historian known for his influential works on ancient Greek literature.
Born in 1701 in Scotland.\nStudied at the University of Aberdeen and furthered his education in England.\nServed as principal of Marischal College, Aberdeen.\nAuthored the influential “An Enquiry into the Life and Writings of Homer” in 1735.\nContributed to Enlightenment-era classical scholarship with pioneering interpretations of ancient Greek literature.\nHis work shaped future generations of historians and literary critics.\nDied in 1757, remembered as one of Scotland’s leading 18th-century scholars.
1701 Thomas Blackwell
1719day.year

Johann Gottlob Lehmann

(1719 - 1767)

German mineralogist and geologist

German mineralogist and geologist
German mineralogist and geologist who pioneered systematic mineral classification.
Born in 1719 in Leipzig, Germany.\nStudied medicine, mineralogy, and natural history at the University of Leipzig.\nAppointed professor of mineralogy and later of mineralogical geology.\nPioneered systematic classification of minerals based on chemical composition and crystallography.\nPublished seminal works that became standard references in 18th-century geology.\nHis methods laid the groundwork for modern mineralogy and helped establish geology as a discipline.\nDied in 1767, revered as a founding figure in geological sciences.
1719 Johann Gottlob Lehmann
1805day.year

William Rowan Hamilton

(1805 - 1865)

Irish physicist, astronomer, and mathematician

Irish physicist astronomer and mathematician
Irish mathematician and physicist who introduced quaternions and advanced classical mechanics.
Born in 1805 in Dublin, Ireland, to a family of strong academic background.\nDisplayed prodigious talent in mathematics and languages from an early age.\nAppointed royal astronomer of Ireland and royal professor of astronomy at Trinity College, Dublin.\nDiscovered quaternion algebra in 1843, revolutionizing mathematical representation of space.\nDeveloped Hamiltonian mechanics, laying foundational concepts for modern physics.\nReceived wide recognition and honors, including membership in scientific societies across Europe.\nDied in 1865, remembered as one of Ireland’s greatest mathematicians.
1805 William Rowan Hamilton
1834day.year

John Venn

(1834 - 1923)

English mathematician and philosopher

English mathematician and philosopher
English mathematician and philosopher best known for inventing the Venn diagram, a fundamental tool in set theory and logic.
John Venn was born in 1834 in Hull, England. He studied at Gonville and Caius College, Cambridge, where he later became a fellow and lecturer in moral science. Venn introduced the Venn diagram in 1880 as a visual method for representing logical relationships between sets, revolutionizing teaching in mathematics and logic. His contributions extended to probability theory and philosophical writings on logic. Venn served as president of the Cambridge Philosophical Society, promoting scientific dialogue. His work laid the groundwork for modern set theory and continues to influence diverse fields from statistics to computer science.
1834 John Venn
1893day.year

Fritz Gause

(1893 - 1973)

German historian and curator

German historian and curator
German historian and curator specializing in medieval history and regional studies.
Fritz Gause was a prominent German historian born in 1893, best known for his scholarly work on medieval European history and the heritage of East Prussia. He served as the director of the Königsberg State Art Collections and later the Provincial Museum in his hometown, where he curated important exhibitions. Gause authored several definitive studies on the cultural and political history of the Baltic region, blending rigorous archival research with comprehensive narrative. His publications include monographs on medieval towns, religious movements, and geopolitical changes in Northern Europe. Beyond academia, he worked to preserve architectural landmarks and historical artifacts during and after World War II. Gause's contributions remain valued by historians studying Central and Eastern European history.
1893 Fritz Gause
1906day.year

Eugen Schuhmacher

(1906 - 1973)

German zoologist, director, and producer

German zoologist director and producer
German zoologist and pioneering wildlife filmmaker known for his nature documentaries.
Eugen Schuhmacher was born in Cologne, Germany, in 1906. Trained as a zoologist, he combined his scientific knowledge with a passion for cinema. He directed and produced some of the earliest German wildlife documentaries in the 1950s. His films, such as 'Im Schatten des Karakorum', brought exotic animal behavior to European audiences. Schuhmacher founded a nature film production company and influenced future documentarians. He remained active in wildlife conservation until his death in 1973.
1906 Eugen Schuhmacher
1909day.year

Glenn Cunningham

(1909 - 1988)

American runner and academic

American runner and academic
American middle-distance runner who overcame severe injuries to set multiple world records and became an academic.
Glenn Cunningham was born in Atlanta, Kansas, in 1909. At age eight, he suffered life-threatening burns and nearly lost his legs. He became known as the 'Kansas Ironman' for his remarkable recovery. Cunningham set world records in the mile and two-mile events in the late 1930s. He competed in the 1932 Los Angeles Olympics, winning a silver medal in the 1500m. After retiring from competition, he taught physical education and conducted research at the University of Kansas.
1909 Glenn Cunningham
1912day.year

Aleksandr Danilovich Aleksandrov

(1912 - 1999)

Russian mathematician, physicist, and mountaineer

Russian mathematician physicist and mountaineer
Russian mathematician and physicist celebrated for his work in geometry, general relativity, and his pioneering mountain expeditions.
Born in 1912, Aleksandr Danilovich Aleksandrov made significant contributions to differential geometry, developing the theory of convex surfaces and spaces of bounded curvature. He held professorships at Leningrad State University and conducted geophysical research into the Earth's crust. An avid mountaineer, he organized expeditions in the Caucasus and Pamirs, combining scientific inquiry with exploration. Aleksandrov served as president of the Soviet Academy of Sciences from 1975 to 1986, mentoring generations of scientists. His textbooks and monographs remain foundational in mathematics and geophysics.
1912 Aleksandr Danilovich Aleksandrov
1918day.year

Brian Crozier

(1918 - 2012)

Australian-English historian and journalist

Australian-English historian and journalist
Australian-English historian and journalist known for his insightful analyses of intelligence and global political dynamics.
Born in 1918, Brian Crozier was a distinguished historian and journalist specializing in intelligence and geopolitics. He founded the Institute for the Study of Conflict and advised governments on Cold War strategy. Crozier authored influential works on Soviet bloc tactics and covert operations. His blend of academic rigor and practical insight shaped Western policy discussions. He remained an active commentator on international affairs until his death in 2012.
1918 Brian Crozier
1926day.year

George Irving Bell

(1926 - 2000)

American physicist, biologist, and mountaineer

American physicist biologist and mountaineer
Versatile American physicist and biologist who made pioneering advances in molecular biology and computational research.
George Irving Bell was born in 1926 and earned his doctorate in physics before turning to biology. He conducted groundbreaking research on the genetic code and immunology at Los Alamos National Laboratory. Bell later helped establish the Santa Fe Institute, promoting interdisciplinary studies in complex systems. An avid mountaineer, he balanced his scientific career with expeditions around the world. His innovative work influenced both theoretical biology and high-performance computing until his death in 2000.
1926 George Irving Bell
1932day.year

Frances E. Allen

(1932 - 2020)

American computer scientist and academic

American computer scientist and academic
Pioneering American computer scientist known for her work in compiler optimization and the first female IBM Fellow.
Frances E. Allen (1932–2020) was a trailblazing computer scientist whose research in program optimization transformed software performance. Joining IBM in 1957, she contributed to the development of compiler technologies that underpin modern computing. In 1989, she became the first woman to be named an IBM Fellow, and in 2006 she received the Turing Award for her foundational work. Allen's leadership in parallel processing and code analysis influenced generations of computer engineers. She was also a passionate mentor, championing women in STEM fields throughout her academic and professional career.
1932 Frances E. Allen
1938day.year

Ellen Schrecker

American historian and academic

American historian and academic
American historian and academic specializing in Cold War-era civil liberties and the history of McCarthyism.
Ellen Schrecker (born 1938) is a distinguished American historian whose research focuses on Cold War politics and academic freedom. She has authored and edited numerous books, including 'Many Are the Crimes' and 'The Age of McCarthyism.' Schrecker served as University Distinguished Professor at Yeshiva University and previously taught at City University of New York. Her scholarship critically examines the impact of anti-communist policies on American institutions and individuals. She has received fellowships from prestigious organizations like the Guggenheim Foundation. Schrecker’s work continues to inform debates on free speech and governmental overreach.
1938 Ellen Schrecker