Leonhard Euler
Mathematician and physicist, Euler's Formula
A prominent mathematician and physicist, contributions included advancements in calculus, graph theory, and topology. Introduced the concept of a mathematical function. Developed Euler's formula that establishes a profound connection between complex analysis and trigonometry. Published over 800 papers and books, making significant contributions to various fields of mathematics and mechanics. His work laid the groundwork for modern mathematics, influencing future generations of mathematicians and scientists.
Introduced Euler's formula in complex analysis
Developed foundational principles in calculus
Contributed to graph theory and topology
Other People Born on April 15th
Raymond Poulidor
Cyclist and Tour de France contender
Born
April 15th, 1936 90 years ago
Died
2019 7 years ago — 83 years old
Achieved significant success in professional cycling, particularly in the Tour de France. Competed in the Tour de France 14 times between 1962 and 1976, finishing on the podium multiple times. Recognized for his consistency and determination, he became a fan favorite despite never winning the overall title. Participated in the Paris-Roubaix race and secured victories in various one-day races throughout his career. Continued to be involved in cycling after retirement, contributing to the sport.
Continue ReadingClaudius Salmasius
French author and scholar of rhetoric
Born
April 15th, 1588 438 years ago
Died
September 3rd, 1653 372 years ago — 65 years old
A classical scholar and rhetorician, contributed significantly to the field of philology. Wrote influential works on the history of rhetoric and criticism of contemporary thinkers. Engaged in public controversies, notably against the works of John Milton regarding the defense of monarchy. His critiques of Milton's 'Defensio pro Populo Anglicano' were pivotal during the English Civil War period, illustrating the intense intellectual debates of the time.
Continue ReadingHoward Berman
American politician and lawyer
Born
April 15th, 1941 85 years ago
Berman served as a member of the United States House of Representatives from California's 28th congressional district for over three decades, from 1983 to 2013. During tenure, Berman served as the Chairman of the House Foreign Affairs Committee, where he was involved in various international issues and legislation. Berman practiced law prior to his political career, contributing to his expertise in legislative matters. His work encompassed advocacy for various policies, including trade and foreign relations.
Continue ReadingFrancis X. DiLorenzo
American bishop of Richmond
Born
April 15th, 1942 84 years ago
Died
2017 9 years ago — 75 years old
Served as the Roman Catholic bishop of Richmond, Virginia, from 2004 until 2017. Prior to this appointment, held various positions in the Diocese of Buffalo, including auxiliary bishop. Contributed to numerous initiatives in education and social justice within the church. Oversaw the management of parishes and schools, focusing on community outreach and religious education.
Continue ReadingDavid Omand
English civil servant and academic
Born
April 15th, 1947 79 years ago
A civil servant and academic, contributions included serving as Director of GCHQ from 1997 to 2002. Played a role in the development of national security strategies and intelligence policies. Later, involved in academic pursuits, focusing on security studies and the implications of technology on governance. Engaged in multiple think tanks and academic institutions, contributing to discussions on intelligence and security.
Continue ReadingRobert Lacroix
Canadian economist and academic scholar
Born
April 15th, 1940 86 years ago
Contributed significantly to the fields of economics and education. Served as a professor at the Université de Montréal, where research focused on labor economics and the economics of education. Played a crucial role in developing policies that influenced educational reform in Quebec. Authored numerous publications discussing the intersection of economics and educational systems, impacting theoretical and practical frameworks.
Continue ReadingOther People Who Died on September 18th
William Hazlitt
English essayist and literary critic
Born
April 10th, 1778 248 years ago
Died
September 18th, 1830 195 years ago — 52 years old
Born in 1778, this prominent English essayist and critic contributed significantly to literature during the early 19th century. Writing extensively on topics ranging from art to politics, produced influential works that examined human nature and society. His essays are marked by a personal touch and insightful observations. Engaged in the Romantic Movement, aligned with figures such as Coleridge and Wordsworth. His critical analyses shaped literary criticism in his era, and he often challenged existing norms through sharp commentary.
Continue ReadingBob Hayes
Sprinter and NFL football player
Born
December 20th, 1942 83 years ago
Died
September 18th, 2002 23 years ago — 59 years old
Achieved Olympic success in sprinting and professional accolades in American football. Won a gold medal in the 100 meters at the 1964 Tokyo Olympics and played for the Dallas Cowboys in the NFL. Contributed to the Cowboys' victory in Super Bowl VI and was inducted into the Pro Football Hall of Fame in 2009. Also excelled in college football at Florida A&M University.
Continue ReadingFairfield Porter
American painter and art critic
Born
June 10th, 1907 118 years ago
Died
September 18th, 1975 50 years ago — 68 years old
A major figure in American art, emphasized figurative painting amidst the rise of abstraction. Pioneered a unique style that combined realism with an emphasis on color and light. Contributed to art criticism through essays and reviews, shaping public perception of contemporary art. Played a significant role in the movements within the 20th-century art scene, especially in the context of New York City's vibrant artistic community.
Continue ReadingBenjamin Péret
French poet and journalist of Surrealism
Born
1899 127 years ago
Died
September 18th, 1959 66 years ago — 60 years old
A prominent figure in the Surrealist movement, contributed significantly to the literary landscape of France. Focused on the exploration of dreams and the unconscious mind, which resonated with the ideals of the Surrealists. Worked as a journalist and collaborated with other notable Surrealists, engaging in various artistic ventures. Participated in numerous exhibitions and publications that promoted the movement's principles.
Continue ReadingConstantine III
Byzantine Emperor during 641
Born
May 3rd, 612 1414 years ago
Died
September 18th, 411 1614 years ago — -201 years old
Ascended to the throne of the Byzantine Empire in 641. Ruled for a brief period during a time of significant transition within the empire. Faced with internal challenges and the rise of external threats, the reign was characterized by political instability. His rule followed that of his father, Heraclius, and took place in the context of ongoing conflicts with the expanding Islamic Caliphate. Constantine III's reign was marked by attempts to consolidate power and maintain the integrity of the empire amid these pressures, although the reign lasted only a few months.
Continue ReadingAmanat Ali Khan
Pakistani classical singer and performer
Born
1922 104 years ago
Died
September 18th, 1974 51 years ago — 52 years old
Renowned as a classical singer, an influential figure in the music tradition of South Asia. Contributed significantly to the genre of ghazal and khayal, showcasing a rich vocal style and intricate melodic variations. Trained in the art of music from a young age, the singer became established in the mid-20th century. Performed extensively on radio and television, captivating audiences with a unique blend of traditional and contemporary styles. Garnered appreciation and accolades for performances that left a lasting legacy in classical music.
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