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
Stanley Bruce
Australian Prime Minister and politician
Born
April 15th, 1883 143 years ago
Died
August 25th, 1967 58 years ago — 84 years old
Served as the 8th Prime Minister of Australia from 1923 to 1929. Focused on economic development and infrastructural improvements during tenure. Advocated for closer ties between Australia and Great Britain. Contributed to the establishment of the National Health and Medical Research Council and played a role in various social reforms. Served in the Australian Senate after his prime ministerial term, representing the United Australia Party.
Continue ReadingRobert W. Gore
Engineer, co-inventor of Gore-Tex
Born
April 15th, 1937 89 years ago
Died
September 17th, 2020 5 years ago — 83 years old
An American engineer and businessman, contributed significantly to materials science. Co-invented Gore-Tex, a waterproof and breathable fabric, in 1969, which revolutionized the outdoor apparel industry. The innovation led to the establishment of W. L. Gore & Associates, a company focused on advanced materials and technology. Under leadership, the company expanded its product offerings and became a major player in various fields, including medical devices and electronics. The work in polymer technology extended beyond textiles to applications in industrial and consumer products.
Continue ReadingIda Freund
Chemist and educator with teaching roles
Born
April 15th, 1863 163 years ago
Died
May 15th, 1914 112 years ago — 51 years old
Born in Austria, a chemist and educator contributed significantly to the field of chemistry and science education. Freund played a pivotal role in developing practical chemistry curricula. She worked as a teacher at various institutions, emphasizing the importance of hands-on laboratory experiences for students. Her efforts aimed to enhance the understanding of chemistry among future generations. Freund also engaged in scientific research and published several articles that furthered educational methodologies in the sciences. Freund's career reflected a commitment to advancing chemistry education during a time when women faced numerous barriers in the academic field.
Continue ReadingMichael Ansara
Actor known for 'Outer Limits' and 'Star Trek'
Born
April 15th, 1922 104 years ago
Died
July 31st, 2013 12 years ago — 91 years old
Born in Syria, became an American actor. Gained prominence after roles in prominent television series during the 1960s. Portrayed Kang in the 'Star Trek' franchise, making a significant mark in science fiction television. Appeared in the series 'Broken Arrow' as well as numerous roles in film and television throughout a career spanning several decades. Contributed voice work to various animated series and video games, showcasing versatility in different mediums.
Continue ReadingArshile Gorky
Painter and illustrator of abstract art
Born
April 15th, 1904 122 years ago
Died
July 21st, 1948 77 years ago — 44 years old
Born in 1904, this Armenian-American painter became a prominent figure in the abstract expressionist movement. Moving to the United States in the 1920s, developed a style that fused elements of surrealism and personal symbolism. Worked in various media, including painting and drawing, drawing inspiration from the work of Picasso and the European avant-garde. Produced significant works like 'The Artist and His Mother', reflecting personal themes and early life experiences. Died in 1948, leaving behind a legacy in modern art.
Continue ReadingCorrie ten Boom
Nazi resister and author of The Hiding Place
Born
April 15th, 1892 134 years ago
Died
1983 43 years ago — 91 years old
Born in the Netherlands, played a pivotal role in sheltering Jewish refugees during World War II. Operated a secret room in her family's home to hide individuals from Nazi persecution. After her arrest, endured imprisonment in concentration camps. Following the war, authored The Hiding Place, detailing experiences and themes of forgiveness and faith. Became a sought-after speaker, sharing lessons of resilience and compassion throughout the world.
Continue ReadingOther People Who Died on September 18th
Eduardo Bonvallet
Chilean footballer and manager
Born
1955 71 years ago
Died
September 18th, 2015 10 years ago — 60 years old
Played as a midfielder for clubs such as Universidad de Chile and Santiago Wanderers. Transitioned to management after retirement, leading teams in the Chilean league. Contributed to football commentary and analysis in media, sharing insights on the sport and player performances. Had a significant influence on coaching methodologies in Chilean football, focusing on player development.
Continue ReadingOlaf Gulbransson
Norwegian painter and illustrator
Born
May 26th, 1873 153 years ago
Died
September 18th, 1958 67 years ago — 85 years old
Born in Norway in 1873, this painter and illustrator gained prominence for contributions to the realms of art and illustration. His artistic journey included studying at the Royal Academy in Munich, leading to a signature style characterized by vivid colors and intricate details. The artist's work appeared in various magazines, showcasing a blend of humor and social commentary. In addition to illustrations, significant involvement in exhibitions further established his reputation during the early 20th century.
Continue ReadingJolidee Matongo
Politician, 97th Mayor of Johannesburg
Born
1975 51 years ago
Died
September 18th, 2021 4 years ago — 46 years old
Served as the 97th Mayor of Johannesburg from 2021 until death in September 2021. Before becoming mayor, held positions within the African National Congress and local government structures, contributing to various community initiatives and governance reforms. Participated actively in addressing issues such as housing, urban development, and social services during tenure. Worked on enhancing the delivery of basic services to residents in Johannesburg. His term was marked by a commitment to improve living conditions in the city.
Continue ReadingLindsay Cooper
Composer and musician, notable for film scores
Born
March 3rd, 1951 75 years ago
Died
September 18th, 2013 12 years ago — 62 years old
Born in England, a composer and musician specialized in bassoon and oboe. Worked across multiple genres, including contemporary classical and music for film and theater. Collaborated with various artists and contributed to numerous projects in the progressive rock and avant-garde scenes. Contributed music to the film "The Last of England" and worked with the group Henry Cow, making significant contributions to their sound.
Continue ReadingEdward J. King
American politician, Governor of Massachusetts
Born
May 11th, 1925 101 years ago
Died
September 18th, 2006 19 years ago — 81 years old
Served as the 66th Governor of Massachusetts from 1979 to 1981. King was the first Democratic governor of Massachusetts in 20 years. His administration focused on issues such as education reform, fiscal policy, and urban development. King faced challenges dealing with a struggling economy and rising unemployment during his tenure. After leaving office, he continued to be active in politics and public service.
Continue ReadingVolin
Anarchist intellectual from Russia
Born
August 23rd, 1882 143 years ago
Died
September 18th, 1945 80 years ago — 63 years old
An influential anarchist intellectual engaged in revolutionary politics in early 20th-century Russia. Participated in the Russian Revolution, advocating for a form of anarchism that emphasized worker's self-management and autonomy. Contributed significantly to anarchist literature and theory, particularly through the publication of 'La Révolte' and 'The Unknown Revolution'. His writings articulated a vision of a stateless society rooted in voluntary cooperation and direct democracy. After the revolution, faced persecution and fled to Western Europe, where continued advocacy for anarchist principles took place.
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