Heinz Wolff
Physiologist and engineer, Wolff's Periodic Table
A physiologist and engineer, contributed significantly to the fields of physiology and biomedical engineering. Served as a professor at Brunel University in London and was a prominent figure in promoting science education through television programs. Developed the Wolff's Periodic Table as a tool in psychophysics and engineering. His work focused on the relationship between physiology and engineering principles.
Developed Wolff's Periodic Table
Hosted scientific programs on BBC
Other People Born on April 29th
Jean-Georges Noverre
French ballet dancer and choreographer
Born
April 29th, 1727 298 years ago
Died
November 19th, 1810 215 years ago — 83 years old
Significant contributions to the development of ballet included the introduction of narrative and expressiveness in dance. Created ballets that incorporated character development and dramatic storytelling, transforming ballet from a purely technical form to one that also conveyed emotion. Authored 'Letters on Dancing and Ballets,' advocating for reforms in the ballet genre and influencing future generations of dancers and choreographers. Served as the ballet master at numerous prestigious institutions, including the Stuttgart Court Theatre and the Paris Opera.
Continue ReadingAlexander II of Russia
Russian Emperor, Emancipated the Serfs
Born
April 29th, 1818 207 years ago
Died
March 13th, 1881 144 years ago — 62 years old
Ruled as Emperor of Russia from 1855 until assassination in 1881. Implemented significant reforms including the emancipation of serfs in 1861, which freed millions from bondage and aimed to modernize Russia. Introduced judicial reforms that established a more equitable legal system. Started the process of military reform, which improved discipline and organization within the army. Promoted education and public health initiatives during reign.
Continue ReadingHenri Poincaré
Mathematician and physicist, celestial mechanics
Born
April 29th, 1854 171 years ago
Died
July 17th, 1912 113 years ago — 58 years old
Contributions covered various areas including topology, dynamical systems, and celestial mechanics. Developed the qualitative theory of differential equations and made significant advancements in the field of mathematical physics. Contributed to the foundations of topology through work that explored the properties of geometrical figures under continuous transformations. Proposed the Poincaré conjecture, a fundamental problem in topology. Worked extensively on the three-body problem in celestial mechanics and formulated the Poincaré recurrence theorem, which has implications in statistical mechanics and chaos theory.
Continue ReadingMaria Teresia Ledóchowska
Austrian nun and missionary founder
Born
April 29th, 1863 162 years ago
Died
July 6th, 1922 103 years ago — 59 years old
Born in 1863, a nun from Austria committed to missionary work. Founded the Congregation of the Missionary Sisters of the Sacred Heart of Jesus, focusing on supporting the marginalized in society. Established various missions, particularly in Africa, to provide education and healthcare. Played a crucial role in promoting vocational training for women and children in underserved areas. Advocated for social justice and sought to improve living conditions for the oppressed.
Continue ReadingGeorge Allen
Canadian ice hockey player and coach
Born
April 29th, 1918 107 years ago
Died
March 27th, 2000 25 years ago — 81 years old
Played as a professional ice hockey player primarily in the National Hockey League (NHL) during the 1960s. Later transitioned into coaching, leading teams in various leagues. Allen's coaching career included stints in the American Hockey League (AHL) and junior ice hockey circuits, where he developed young talent. His strategies and techniques contributed to the growth of the teams he managed. Historic contributions made to the sport were acknowledged following a successful tenure in coaching, culminating in a significant legacy in Canadian hockey.
Continue ReadingJack Williamson
American author of science fiction
Born
April 29th, 1908 117 years ago
Died
November 10th, 2006 19 years ago — 98 years old
Contributed significantly to the science fiction genre through both writing and academia. Authored numerous novels and short stories, with several works exploring themes of technology and the future. Held a long-term academic position and influenced generations of writers and readers in the field. His notable works include 'The Humanoids' and 'Demon Country'.
Continue ReadingOther People Who Died on December 15th
Saufatu Sopoanga
Tuvaluan politician, 8th Prime Minister
Born
February 22nd, 1952 73 years ago
Died
December 15th, 2020 5 years ago — 68 years old
Served as the 8th Prime Minister of Tuvalu from 2002 to 2004. Held various ministerial positions, including Minister for Finance and Minister for Foreign Affairs. Focused on issues of climate change and sustainable development during time in office. Worked to raise Tuvalu's profile in international forums and enhance diplomatic relations.
Continue ReadingWilfred Kitching
General of The Salvation Army
Born
August 22nd, 1893 132 years ago
Died
December 15th, 1977 48 years ago — 84 years old
Served as the 7th General of The Salvation Army from 1963 until retirement in 1974. Held a prominent leadership role within the organization, guiding its mission and initiatives during a period of significant change. Focused on expanding outreach to communities in need and strengthening the organization's global presence. Oversaw various programs aimed at social welfare and spiritual support, and promoted the core principles of the Salvation Army.
Continue ReadingCharles Laughton
Actor and director, celebrated for 'Witness for the Prosecution'
Born
July 1st, 1899 126 years ago
Died
December 15th, 1962 63 years ago — 63 years old
An English-American actor and director, contributions to film and theater are notable. Laughton received acclaim for portraying complex characters, particularly in the film adaptations of literary works. Directed films showcasing his vision, particularly 'The Night of the Hunter'. His performance in 'Witness for the Prosecution' earned a nomination for an Academy Award, solidifying his status in cinematic history. Laughton's theater work included significant performances in London and New York, reflecting a deep commitment to the craft of acting.
Continue ReadingEliza Atkins Gleason
American librarian and educator
Born
December 15th, 1909 116 years ago
Died
December 15th, 2009 16 years ago — 100 years old
Contributed significantly to library science and education in the United States. Worked as an educator and librarian in various institutions. Published widely on library science, history, and education practices. Served as the first African American librarian at the Los Angeles Public Library. Focused on the importance of libraries in urban education and community service.
Continue ReadingVasily Zaytsev
Russian sniper during WWII
Born
March 23rd, 1915 110 years ago
Died
December 15th, 1991 34 years ago — 76 years old
Served as a captain in the Soviet Army during World War II. Gained prominence during the Battle of Stalingrad, where exceptional marksmanship resulted in the elimination of numerous enemy soldiers. Participated in sniper duels and demonstrated remarkable tactical acumen, which contributed to the Soviet defense. Zaytsev became a symbol of Soviet resistance and heroism, earning recognition among both soldiers and civilians.
Continue ReadingKeith Arbuthnott
Scottish soldier and peer
Born
August 21st, 1897 128 years ago
Died
December 15th, 1966 59 years ago — 69 years old
Born in 1897, served in the British Army during World War I and World War II. Advanced to the rank of Major General. Involved in military operations with notable leadership during key campaigns. Held the title of 15th Viscount of Arbuthnott.
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