1652day.year

Jean-Charles della Faille

(1597 - 1652)

Flemish priest and mathematician

Flemish priest and mathematician
Flemish Jesuit priest and pioneering mathematician known for his work in geometry and optics.
Born in Antwerp in 1597, he joined the Society of Jesus and pursued studies in mathematics and natural philosophy. Appointed professor at the University of Leuven, he published influential treatises on conic sections and optical phenomena. His correspondence with leading scientists helped spread his ideas across Europe. Della Faille later traveled on a Jesuit mission to Goa, India, where he continued his scholarly work. He died in 1652, leaving a legacy that bridged faith and scientific inquiry.
1652 Jean-Charles della Faille
1669day.year

Johannes Cocceius

(1603 - 1669)

Dutch theologian and academic

Dutch theologian and academic
Dutch Reformed theologian and academic recognized as the father of covenant theology.
Born in Bremen in 1603, he studied at the Herborn Academy and Leiden University before becoming a pastor. Appointed professor of theology at Leiden in 1650, he developed the federal theology framework interpreting history through successive divine covenants. His writings, including his landmark "Summae Doctrinae Christian Decalogi", reshaped Reformed theology across Europe. He trained a generation of ministers and fostered scholarly debate on biblical interpretation. He died in 1669, and his covenantal approach remains influential in modern theological studies.
1669 Johannes Cocceius
1698day.year

Rasmus Bartholin

(1625 - 1698)

Danish physician and mathematician

Danish physician and mathematician
Danish physician and mathematician best known for discovering double refraction in Iceland spar.
Born in Roskilde in 1625, he graduated from the University of Copenhagen and later studied in Padua, Italy. As a professor of geometry at Copenhagen, he published observations of birefringence in calcite crystals in 1669, a breakthrough in optical science. Bartholin also practiced medicine and wrote treatises on anatomy and mathematical principles. His research laid the groundwork for later advances in optics and crystallography. He died in 1698, remembered as a pioneering figure in both medicine and mathematics.
1698 Rasmus Bartholin
1704day.year

Andreas Acoluthus

(1654 - 1704)

German orientalist and scholar

German orientalist and scholar
German orientalist and scholar noted for his pioneering research in Eastern languages and cultures.
Born in Leipzig in 1654, he studied theology and oriental languages at the University of Leipzig. He produced one of the first grammars of the Coptic language and compiled Arabic-Latin dictionaries that became essential references for European scholars. His analytical approach to Eastern manuscripts advanced the study of Semitic and Egyptian texts. Acoluthus held a professorship in oriental languages and traveled across Europe to access rare collections. He died in 1704, leaving significant contributions to comparative linguistics and cultural studies.
1704 Andreas Acoluthus
1801day.year

William Shippen

(1712 - 1801)

American physician and anatomist

American physician and anatomist
American physician and anatomist who helped establish formal medical education in colonial America.
Born in Philadelphia in 1712, he graduated from the College of New Jersey and studied medicine at the University of Edinburgh. In 1766 he became the first professor of anatomy and surgery at the College of Philadelphia, later the University of Pennsylvania. Shippen founded one of the first public hospitals in North America and introduced systematic anatomical dissection to medical training. During the American Revolution, he served as Director General of Hospitals for the Continental Army. He died in 1801, leaving a legacy as a pioneer of American medical education and practice.
1801 William Shippen
1959day.year

Friedrich Waismann

(1896 - 1959)

Austrian mathematician, physicist, and philosopher from the Vienna Circle

Austrian mathematician physicist and philosopher from the Vienna Circle
Austrian mathematician, physicist, and philosopher associated with the Vienna Circle and logical positivism.
Born in 1896 in Vienna, Waismann studied mathematics and physics at the University of Vienna. A close collaborator of Moritz Schlick, he became a key member of the Vienna Circle, promoting logical empiricism. His work on the philosophy of language and foundations of mathematics, especially his collaboration with Ludwig Wittgenstein, influenced analytic philosophy. Waismann wrote 'Foundations of the Philosophy of Science' and co-authored works on logical syntax. He lectured at the University of Berlin before fleeing Nazi persecution to the UK. In exile, he continued research and translation, bridging continental and Anglo-American traditions. His death in 1959 marked the loss of a significant figure in 20th-century philosophy.
1959 Friedrich Waismann
1975day.year

Francis Dvornik

(1893 - 1975)

Czech priest and academic

Czech priest and academic
Czech Catholic priest and historian, prominent scholar of Byzantine and Slavic church history.
Born in 1893 in Jablunkov, Francis Dvornik was ordained as a Catholic priest before pursuing academic research. He earned his doctorate in theology and history, specializing in Byzantine studies. Dvornik taught at universities in Prague and later at Harvard and the Catholic University of America. His landmark works on the relations between the Eastern and Western churches shed light on medieval church politics. He published over 40 books and numerous articles on Slavic Christianity, Orthodoxy, and Byzantine diplomacy. A member of several historical and theological societies, Dvornik received international honors for his scholarship. He died in 1975, leaving a lasting legacy in ecclesiastical history and ecumenical studies.
1975 Francis Dvornik
1975day.year

Izzat Husrieh

(1914 - 1975)

Syrian journalist, historian, and academic

Syrian journalist historian and academic
Syrian journalist, historian, and academic known for documenting modern Syrian history.
Born in 1914 in Damascus, Izzat Husrieh studied history and journalism at the University of Damascus. He began his career as a newspaper editor and columnist, providing in-depth analysis of Middle Eastern affairs. Husrieh authored several books on Syrian national movements and social history, becoming a respected academic voice. He taught at the University of Damascus and lectured internationally on Arab history. Known for his meticulous research and engaging writing style, he helped preserve Syria's cultural heritage. Husrieh also served as a consultant to governmental and educational institutions. He passed away in 1975, leaving a valuable body of work that continues to inform historians and scholars of the region.
Izzat Husrieh
1980day.year

Elsie MacGill

(1905 - 1980)

Canadian-American engineer and author

Canadian-American engineer and author
Pioneering Canadian-American aeronautical engineer and author known for her leadership in aircraft design during World War II.
Born in 1905, Elsie MacGill became one of the first women in North America to earn an engineering degree, breaking gender barriers in the field. During World War II, she served as chief engineer at Victory Aircraft, overseeing production of the Hawker Hurricane fighter and earning her the nickname Queen of the Hurricanes. After the war, she lectured on engineering and women's rights, publishing works that advocated for social and technical progress. MacGill's dual legacy as a leading engineer and author showcased her commitment to innovation and equality in a male-dominated industry. Her groundbreaking contributions continue to inspire women in STEM fields worldwide.
1980 Elsie MacGill
1986day.year

Kurt Hirsch

(1906 - 1986)

German-English mathematician and academic

German-English mathematician and academic
German-English mathematician renowned for his work in group theory and academic contributions across Europe.
Born in 1906, Kurt Hirsch made significant advances in the study of algebraic structures, particularly in group theory. He held academic positions in Germany and England, shaping generations of mathematicians through his teaching and mentorship. Hirsch co-developed key theorems that deepened the understanding of finite and infinite groups. After emigrating to Britain, he continued his research and published influential papers that guided future investigations. He remained an active scholar until his death in 1986, leaving a profound impact on the field of mathematics.
1986 Kurt Hirsch
1992day.year

George Klein

(1904 - 1992)

Canadian engineer, invented the motorized wheelchair

Canadian engineer invented the motorized wheelchair
Canadian engineer and inventor who pioneered the first practical motorized wheelchair.
Born in 1904, George Klein studied mechanical engineering at the University of Saskatchewan before joining the National Research Council of Canada. In the mid-20th century, he developed one of the first electrically powered wheelchairs, revolutionizing mobility for disabled individuals. Klein's inventions extended beyond wheelchairs, as he contributed to developments in medical devices and rehabilitation technology. His innovative spirit and engineering expertise earned him national awards and recognition for humanitarian impact. He remained active in research and advocacy until his death in 1992, leaving a legacy of transformative inventions.
1992 George Klein motorized wheelchair
1995day.year

Morrie Schwartz

(1916 - 1995)

American sociologist, author, and academic

American sociologist author and academic
American sociologist and professor whose life lessons became the heart of the bestselling memoir "Tuesdays with Morrie".
Born in 1916 in New York City, Morrie Schwartz earned his doctorate in sociology and joined the faculty at Brandeis University. He became known for his research on family dynamics, aging, and human relationships. In the late stages of his life, Schwartz agreed to a series of interviews with former student Mitch Albom, resulting in the 1997 memoir "Tuesdays with Morrie". The book’s reflections on love, work, and mortality struck a global chord, selling millions of copies and inspiring readers worldwide. Although he passed away in 1995, Schwartz’s insights continue to influence discussions on ethics, compassion, and the meaning of life.
Morrie Schwartz