Hippolyte Fizeau
French physicist and academic
Contributed significantly to the field of physics in the 19th century. Developed innovative methods for measuring the speed of light and proposed the Fizeau formula for calculating the speed of light in a medium. Conducted experiments that solidified the wave theory of light. Fizeau also served as a professor of physics and played a major role in the advancement of scientific education in France.
Measured the speed of light using rotating mirrors
Performed experiments demonstrating wave theory of light
Other People Born on September 23rd
Princess Juliane of Saxe-Coburg-Saalfeld
Noblewoman, Queen of the Belgians
Born
September 23rd, 1781 245 years ago
Died
1860 166 years ago — 79 years old
Born in 1781, she belonged to the Saxe-Coburg-Saalfeld family and later became the Queen of Belgium as the consort of King Leopold I. The marriage took place in 1816, and she played a significant role in the early years of the Belgian monarchy after independence was achieved. Her efforts contributed to establishing the royal family's presence in Belgian society. The couple had several children, many of whom would marry into other European royal families, further solidifying alliances. After her husband's death in 1865, she took on various charitable activities and remained a respected figure in Belgium.
Continue ReadingSong Yu-qi
Chinese singer in girl group (G)-IDLE
Born
September 23rd, 1999 27 years ago
A prominent Chinese singer, gained recognition as a member of the South Korean girl group (G)-IDLE. The group debuted in 2018 under CUBE Entertainment and quickly rose to prominence in the K-pop industry with various hit songs. The singer participated in the competition show 'Produce 48', solidifying her celebrity status with performances that showcased her vocal talent and stage presence. Beyond group activities, solo endeavors include participation in music shows and contributions to the group’s discography.
Continue ReadingEmperor Kōkaku of Japan
Japanese Emperor during the Edo period
Born
September 23rd, 1771 255 years ago
Died
December 11th, 1840 185 years ago — 69 years old
Reigned from 1779 to 1817, emphasized cultural development and administration reform. Guided the nation through a period characterized by stability and relative peace, known as the Edo period. Oversaw significant changes in Japanese society, including art, literature, and the economy. Advocated for the growth of traditional Japanese arts and encouraged interaction with Western cultures, leading to gradual modernization. After abdication, continued to influence the imperial court.
Continue ReadingGeorge Jackson
American activist and author
Born
September 23rd, 1941 85 years ago
Died
August 21st, 1971 55 years ago — 29 years old
An influential activist and author emerged during the civil rights movement. Co-founded the Black Guerrilla Family while incarcerated, focusing on prison reform and societal change. Authored the books 'Soledad Brother' and 'Blood in My Eye', which discussed issues of racial injustice and the prison system. His writings and activism highlighted the struggles faced by African Americans and prisoners.
Continue ReadingPrincess Marie Elisabeth of Saxe-Meiningen
German Princess and Royal Figure
Born
September 23rd, 1853 173 years ago
Died
1923 103 years ago — 70 years old
Born in 1853, a member of the Saxe-Meiningen dynasty. Engaged in charitable work, focusing on the welfare of children and women. Contributed to various social causes throughout life, particularly emphasizing education and healthcare improvements. Involved in royal events and represented the dynasty in public affairs. Known for participation in cultural and social initiatives.
Continue ReadingMickey Rooney
Actor and dancer in classic films
Born
September 23rd, 1920 106 years ago
Died
April 6th, 2014 12 years ago — 93 years old
An American actor and dancer, this individual began performing in silent films as a child and rose to prominence in the 1930s and 1940s. Notable work included leading roles in The Andy Hardy series, for which there were a total of 16 films. Over a career spanning nearly nine decades, this performer showcased versatility in both comedic and dramatic roles. Apart from acting, also gained recognition for considerable work in dance and musical theater.
Continue ReadingOther People Who Died on September 18th
Mauricio Kagel
Composer and scholar of contemporary music
Born
December 24th, 1931 94 years ago
Died
September 18th, 2008 18 years ago — 76 years old
Born in Argentina and later moving to Germany, this composer contributed significantly to the avant-garde music scene. He studied musicology, performance, and composition, blending elements of theater and music in innovative ways. Some compositions incorporated multimedia elements, exploring the relationship between sound and visual art. This composer was a professor at various institutions, influencing future generations of musicians and composers. Notable works include 'Zwei Augen' and 'Transición,' showcasing a unique approach to contemporary classical music.
Continue ReadingFranchot Tone
American actor in 'Mutiny on the Bounty'
Born
February 27th, 1905 121 years ago
Died
September 18th, 1968 58 years ago — 63 years old
Born in 1905, an American actor and producer gained recognition in Hollywood during the 1930s and 1940s. Featured in films such as 'Mutiny on the Bounty' and 'The Lives of a Bengal Lancer', showcased versatility in both dramatic and comedic roles. In addition to films, worked in television and theater throughout a prolific career. Also involved in producing and contributed to various productions.
Continue ReadingMelchior Klesl
Austrian cardinal and statesman
Born
February 19th, 1552 474 years ago
Died
September 18th, 1630 396 years ago — 78 years old
Born in 1552, served as a prominent cardinal within the Catholic Church and played a significant role in Austro-Hungarian politics during the early 17th century. Klesl was instrumental in the organization of the religious practices in his region and contributed to the Counter-Reformation efforts. He held several key positions, including Archbishop of Vienna, and took part in the negotiations of the Peace of Augsburg.
Continue ReadingVolin
Anarchist intellectual from Russia
Born
August 23rd, 1882 144 years ago
Died
September 18th, 1945 81 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.
Continue ReadingEduardo Bonvallet
Chilean footballer and manager
Born
1955 71 years ago
Died
September 18th, 2015 11 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 ReadingStanisław Ignacy Witkiewicz
Polish author and painter
Born
February 24th, 1885 141 years ago
Died
September 18th, 1939 87 years ago — 54 years old
An author, poet, and painter, contributed significantly to the development of Polish theatre and literature in the early 20th century. Established a unique style characterized by the integration of visual arts and dramatic literature. Developed a psychological and philosophical system, particularly through his plays which explored themes of existentialism and identity. Active in the avant-garde movement, Witkiewicz's work often challenged societal norms and traditional artistic expressions. His artistic contributions are marked by a deep engagement with complex human emotions and the absurdities of life.
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