Mark Rosenzweig
Psychologist and academic researcher
Born
Died
Category
Scientists & Innovators
Country
United States
Links & References
Contributions focused on animal behavior and brain development. Rosenzweig studied the effects of environmental factors on the brain, notably through experiments with rats. Research demonstrated that enriched environments could enhance cognitive functions and brain plasticity. Served as a professor and continued to share findings through numerous publications and educational efforts within the field of psychology.
Conducted experiments on brain plasticity
Introduced concepts of environmental enrichment
Published extensively on animal behavior
Other People Born on September 12th
George Chuvalo
Canadian Heavyweight Boxer
Born
September 12th, 1937 88 years ago
A professional boxer from Canada, competed as a heavyweight from 1956 to 1978. Fought for the heavyweight championship multiple times, facing notable opponents including Muhammad Ali and Joe Frazier. Remarkably known for his durability and never being knocked down during his career. After retirement, became an advocate for mental health awareness.
Continue ReadingLeonard Peltier
Political activist and prisoner advocate
Born
September 12th, 1944 81 years ago
Born in 1944, Peltier became an important figure in the American Indian Movement during the 1970s. Peltier's activism centered around the rights and sovereignty of Indigenous peoples. After a deadly shootout at Wounded Knee, Peltier was convicted of murder in connection with the deaths of two FBI agents in 1975. The conviction was controversial and has been the subject of ongoing debates regarding civil rights and legal injustices faced by Native Americans. Peltier has spent decades in prison, advocating for Indigenous rights and raising awareness about political prisoners.
Continue ReadingRichard Jordan Gatling
American engineer, inventor of the Gatling gun
Born
September 12th, 1818 207 years ago
Died
February 26th, 1903 122 years ago — 84 years old
An American engineer developed the Gatling gun, one of the earliest successful machine guns. The Gatling gun was patented in 1862 and saw extensive use during the American Civil War. Its design utilized a rotating barrel and a hand-crank mechanism, allowing rapid fire compared to traditional firearms. Gatling's invention significantly influenced military technology and warfare strategies. Later, the design was modified and improved for increased efficiency and reliability in subsequent conflicts. Gatling's contributions to engineering extended beyond firearms as he patented over a dozen inventions during his career.
Continue ReadingAlfred A. Knopf Sr.
American publisher and book founder
Born
September 12th, 1892 133 years ago
Died
August 11th, 1984 41 years ago — 91 years old
Established Alfred A. Knopf, Inc., a publishing house that became influential in the American literature landscape. Focused on quality literature, the publisher developed a reputation for producing works by eminent authors. The imprint published acclaimed books across various genres, emphasizing both fiction and nonfiction. Under this leadership, the company gained a significant market presence and contributed to the literary culture of the time.
Continue ReadingCarl Eytel
Painter and illustrator of the American West
Born
September 12th, 1862 163 years ago
Died
September 17th, 1925 100 years ago — 63 years old
Born in Germany and later emigrated to the United States, specialized in landscape painting and illustrations depicting the American West. Pursued artistic studies and honed skills in Europe before relocating. Captured the beauty of Western landscapes, Native American subjects, and regional wildlife. Worked both as a plein air painter and a studio artist. Contributions spanned various mediums, including watercolor and oil painting. Held exhibitions and gained recognition for artworks that depicted the rich cultural heritage of the American frontier.
Continue ReadingIstván Horthy
Hungarian fighter pilot and deputy regent
Born
September 12th, 1904 121 years ago
Died
August 20th, 1942 83 years ago — 37 years old
Served as a fighter pilot during World War II, participating in various missions in the Eastern Front. Held the position of deputy regent of Hungary under Miklós Horthy from 1944 until the end of the war. Involved in political and military affairs during a tumultuous period in Hungarian history. Post-war, faced challenges as Hungary transitioned away from a monarchy.
Continue ReadingOther People Who Died on July 20th
Dieter Moebius
Keyboard player and producer of krautrock
Born
January 16th, 1944 81 years ago
Died
July 20th, 2015 10 years ago — 71 years old
A keyboard player and producer contributed significantly to the krautrock genre. Collaborated with cluster and other notable musicians to create experimental electronic music. Co-founded the group Harmonia, which included influential figures in the genre. Released solo works and participated in various collaborations throughout a lengthy career, leaving a lasting legacy in electronic music and production.
Continue ReadingKlaus Schmidt
German archaeologist and academic
Born
1953 72 years ago
Died
July 20th, 2014 11 years ago — 61 years old
Significant contributions were made to the field of archaeology, particularly through the work at Göbekli Tepe, an ancient archaeological site in Turkey. Schmidt led excavations that uncovered monumental structures dating back to the Pre-Pottery Neolithic period, showcasing early religious and communal activities. His research provided insights into the transition from hunter-gatherer societies to settled farming, emphasizing the importance of Göbekli Tepe in understanding early human civilization.
Continue ReadingRené Bazin
French author and academic of literature
Born
December 26th, 1853 171 years ago
Died
July 20th, 1932 93 years ago — 78 years old
This individual was a prominent French author and academic, recognized for contributions to literature in the late 19th and early 20th centuries. As a member of the Académie Française, this figure achieved prominence through a range of works that explored themes of nature, spirituality, and social issues. Works included 'L'Invasion' and 'Notre-Dame de Paris', which showcased narrative depth and literary skill. In addition to writing, served in academia, influencing a generation of writers and readers.
Continue ReadingKarl Bernhard Zoeppritz
Geophysicist and seismologist
Born
October 22nd, 1881 144 years ago
Died
July 20th, 1908 117 years ago — 26 years old
Contributed significantly to the field of geophysics and seismology. Developed Zoeppritz equations, which describe the reflection of seismic waves at an interface between two different elastic materials, essential for exploration geophysics. Made substantial advancements in understanding how seismic waves interact with geological structures. Conducted research that laid foundational work for future studies in seismic analysis and petroleum exploration.
Continue ReadingJack Davis
American hurdler and Olympic competitor
Born
1930 95 years ago
Died
July 20th, 2012 13 years ago — 82 years old
Competed in track and field events, specializing in hurdles. Achieved significant recognition for participation in the 1960 Rome Olympics, where the individual represented the United States. Showcased athletic prowess in various hurdles events throughout the competitive career, contributing to the prominence of American athletics during that era.
Continue ReadingBernhard Riemann
Mathematician and creator of Riemann surfaces
Born
September 17th, 1826 199 years ago
Died
July 20th, 1866 159 years ago — 39 years old
A mathematician contributed significantly to the fields of analysis, differential geometry, and number theory. Riemann introduced concepts such as Riemann surfaces and Riemannian geometry, which laid the groundwork for modern mathematical analysis and theoretical physics. The Riemann Hypothesis, a conjecture regarding the distribution of prime numbers, remains one of the most important unsolved problems in mathematics. Riemann's methods also influenced later developments in complex analysis and topology.
Continue Reading