86 BC

Sallust

Roman historian

Roman historian
Ancient Roman historian renowned for his accounts of the Catiline Conspiracy and the Jugurthine War.
Gaius Sallustius Crispus, known as Sallust (86 BC–?), was a Roman historian and politician. He served as quaestor and governor in North Africa. He authored key historical monographs including Bellum Jugurthinum and Catilinae Coniuratio. His works combined personal insight and moral analysis, pioneering a concise and pointed style. Sallust critiqued the corruption and moral decline of the late Republic. His influence endured through medieval and Renaissance scholarship.
86 BC Sallust
1671day.year

Luigi Guido Grandi

(1671 - 1742)

Italian monk, mathematician, and engineer

Italian monk mathematician and engineer
Italian Camaldolese monk and mathematician known for Grandi's series and contributions to mechanics.
Born in Levi, Italy, in 1671, Grandi joined the Camaldolese order and pursued studies in mathematics and engineering. He is best known for the infinite series named after him, Grandi's series, and his work on mechanical devices. Grandi authored treatises on hydraulics, statics, and the construction of water clocks. His research bridged theoretical mathematics and practical engineering innovations. Grandi's interdisciplinary legacy influenced both scientific and religious communities.
1671 Luigi Guido Grandi
1712day.year

William Shippen

(1712 - 1801)

American physician and politician

American physician and politician
American physician and politician who served in the Continental Congress during the Revolutionary era.
Born in Philadelphia in 1712, William Shippen studied medicine and became a pioneer of American medical education. He served as Surgeon General of the Continental Army and later represented Pennsylvania in the Continental Congress. Shippen advocated for medical training and established one of the first medical lectureships in the colonies. He combined his medical career with public service, influencing early American healthcare policy. Shippen's dual legacy reflects both scientific progress and the forging of a new nation.
1712 William Shippen
1762day.year

Anton Bernolák

(1762 - 1813)

Slovak priest and linguist

Slovak priest and linguist
Anton Bernolák was a Slovak Catholic priest and linguist who created the first codified standard for the Slovak language.
Born in 1762 in Slaný, Bernolák studied theology and served in various parishes before devoting himself to linguistic research. In 1787 he published the first systematic grammar of Slovak, establishing a foundation for national literary development. His 'Grammatica Slavica' and accompanying dictionaries unified regional dialects and inspired future language reformers. Bernolák also translated religious texts and promoted education in his native tongue. Though his standard was later superseded, his pioneering work remains a milestone in Slovak cultural history.
1762 Anton Bernolák
1835day.year

Ádám Politzer

(1835 - 1920)

Hungarian-Austrian physician and anatomist

Hungarian-Austrian physician and anatomist
Ádám Politzer was a Hungarian-Austrian physician and pioneering otologist, often regarded as a founder of modern ear medicine.
Born in 1835 in Albertirsa, Hungary, Politzer studied medicine at the University of Vienna and specialized in ear, nose, and throat diseases. He developed the Politzer bag, a device for middle ear insufflation, and advanced the use of the pneumatic otoscope for diagnosis. As professor of otology, he established one of the world's first ear clinics and trained numerous specialists. Politzer published influential textbooks and founded the Centralblatt für Ohrenheilkunde, the first journal dedicated to ear medicine. His meticulous research into ear anatomy and function laid the groundwork for modern audiology. Politzer's contributions continue to impact clinical practice and medical teaching.
1835 Ádám Politzer
1878day.year

Othmar Spann

(1878 - 1950)

Austrian economist, sociologist, and philosopher

Austrian economist sociologist and philosopher
Othmar Spann was an Austrian philosopher, economist, and sociologist known for his influential universalist theory and conservative social thought.
Othmar Spann pioneered a philosophical approach known as universalism, emphasizing the organic unity of society over individualism. He held professorships at the Universities of Vienna and Prague, where he taught economics and social theory. Spann's critique of liberalism and Marxism attracted support among conservative intellectuals in interwar Europe. His works advocated a corporatist social order and influenced authoritarian politics in Austria and Germany. Despite controversies, Spann's writings on social harmony and spiritual community contributed to 20th-century political philosophy debates. He remained a polarizing figure until his death in 1950, with his ideas experiencing both criticism and revival posthumously.
1878 Othmar Spann
1894day.year

Edgar Krahn

(1894 - 1961)

Estonian mathematician and academic

Estonian mathematician and academic
Edgar Krahn was an Estonian mathematician known for his work in mathematical physics and spectral theory.
Edgar Krahn (1894–1961) was an Estonian mathematician and educator recognized for his contributions to mathematical physics and spectral theory. He studied at the University of Göttingen under leading mathematicians of his time. Krahn’s research on the vibrating membranes problem led to the formulation of the Krahn–Szegő inequality. He published papers on potential theory, eigenvalue problems, and probability theory. After returning to Estonia, he served as a professor at Tartu University and influenced a generation of mathematicians. Krahn’s work laid foundational insights in analysis and remains cited in mathematical literature today.
1894 Edgar Krahn
1904day.year

Otto Robert Frisch

(1904 - 1979)

Austrian-English physicist and academic

Austrian-English physicist and academic
Austrian-English physicist and academic, co-discoverer of nuclear fission and contributor to the Manhattan Project.
Born in Vienna in 1904, Otto Robert Frisch studied physics at the University of Vienna before moving to Germany and then England to escape the rise of Nazism. At the Cavendish Laboratory in Cambridge, he worked with James Chadwick and Lise Meitner, leading to the identification of nuclear fission in 1939. His experimental insights and theoretical calculations helped quantify fission processes and assess the feasibility of chain reactions. During World War II, Frisch joined the British Mission to the Manhattan Project, where he refined critical mass estimates and explosive designs. After the war, he held professorships in Birmingham and later returned to Cambridge, contributing to nuclear and molecular physics. Frisch's pioneering work laid the groundwork for both nuclear energy and the development of atomic weapons.
1904 Otto Robert Frisch
1910day.year

Fritz Köberle

(1910 - 1983)

Austrian-Brazilian physician and pathologist

Austrian-Brazilian physician and pathologist
Austrian-Brazilian pathologist whose research advanced understanding of Chagas disease.
Fritz Köberle was born in Austria in 1910 and earned his medical degree from the University of Vienna. He specialized in pathology, focusing on tropical diseases later in his career. In 1947, Köberle moved to Brazil and joined the Tropical Medicine Institute in São Paulo. His pioneering research on the pathology of Chagas disease revealed the mechanisms of cardiac damage caused by the parasite. Over decades, he published more than 100 scientific papers and mentored numerous students in tropical medicine. Köberle’s work significantly advanced understanding and treatment of Chagas disease in Latin America.
1910 Fritz Köberle
1910day.year

José Enrique Moyal

(1910 - 1998)

Australian physicist and engineer

Australian physicist and engineer
Australian mathematical physicist famed for the phase-space formulation of quantum mechanics.
José Enrique Moyal was born in Montevideo in 1910 and studied electrical engineering in England. He moved to Australia in 1953, joining the Commonwealth Scientific and Industrial Research Organisation (CSIRO). Moyal developed the phase-space formulation of quantum mechanics, now known as the Moyal bracket, bridging classical and quantum theories. His research extended to probability theory, communication engineering, and statistical mechanics. Moyal published extensively in academic journals and influenced the mathematical foundations of physics. His interdisciplinary work continues to underpin modern developments in quantum theory and signal processing.
José Enrique Moyal
1912day.year

Kathleen Ollerenshaw

(1912 - 2014)

English mathematician, astronomer, and politician, Lord Mayor of Manchester

English mathematician astronomer and politician Lord Mayor of Manchester
English mathematician and politician who served as Lord Mayor of Manchester.
Kathleen Ollerenshaw made significant contributions to mathematics, particularly in the study of magic squares and combinatorial design. She balanced her scientific career with public service, culminating in her tenure as Lord Mayor of Manchester in 1975. Her work in education reform and local government demonstrated her dedication to community and scholarship. She published numerous papers and inspired young women to pursue careers in STEM fields. Ollerenshaw received honors for both her mathematical research and her civic leadership before passing away in 2014.
1912 Kathleen Ollerenshaw Lord Mayor of Manchester
1914day.year

Daniel J. Boorstin

(1914 - 2004)

American historian, lawyer, author, and 12th Librarian of Congress

American historian lawyer author and 12th Librarian of Congress
American historian and author who served as the 12th Librarian of Congress.
Daniel J. Boorstin was born in 1914 and became a leading historian and public intellectual. He served as Librarian of Congress from 1975 to 1987, modernizing the institution and expanding access. Boorstin authored acclaimed works such as The Discoverers and received a Pulitzer Prize for history. His writings explored the history of innovation and shaped public understanding of the American experience. He died in 2004, remembered for his scholarly rigor and engaging narrative style.
1914 Daniel J. Boorstin Librarian of Congress