Bernhard Riemann

Mathematician and creator of Riemann surfaces

Bernhard Riemann - Mathematician and creator of Riemann surfaces
Born

September 17th, 1826
198 years ago

Died

July 20th, 1866
158 years ago — 39 years old

Category

Thinkers & Philosophers

Country

Germany

Links & References

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.

Introduced the Riemann Hypothesis

Developed Riemann surfaces

Laid foundations for Riemannian geometry

Other People Born on September 17th

Des Lynam

Journalist and author; BBC Sports presenter
Born
September 17th, 1942 82 years ago

Born in Ireland, pursued a career in journalism with a focus on sports coverage. Joined the BBC and became a prominent sports presenter, covering major sporting events such as the FIFA World Cup and the Olympic Games. Also served as a host for various BBC programs, combining analysis with engaging commentary. Transitioned into writing, authoring works on sports and his experiences in journalism.

Continue Reading

Lucius Quintus Cincinnatus Lamar II

American politician and lawyer
Born
September 17th, 1825 199 years ago
Died
January 23rd, 1893 132 years ago — 67 years old

Served as the 16th Secretary of the Interior. Elected to the U.S. House of Representatives from Mississippi. Appointed as a Justice of the United States Supreme Court. Contributed to the development of policies and legislation in the areas of land management and Native American affairs.

Continue Reading

Charles Griffes

American pianist and composer
Born
September 17th, 1884 140 years ago
Died
April 8th, 1920 105 years ago — 35 years old

A prominent American composer and pianist in the early 20th century, contributed significantly to the classical music scene. Advanced the use of impressionistic techniques in compositions. Managed to blend traditional forms with innovative harmonic language. The most recognized work includes the orchestral piece "Poem for Flute and Orchestra," showcasing a unique fusion of American and European musical influences.

Continue Reading

Dustin Nguyen

Actor and director of '21 Jump Street'
Born
September 17th, 1962 62 years ago

An accomplished Vietnamese-American actor, director, producer, and screenwriter, significant contributions were made in television and film. Best remembered for a leading role in the television series '21 Jump Street', which aired from 1987 to 1991. Also directed episodes of the television series 'Vietnamese-American'. Notable involvement in both acting and producing projects that explored cultural themes and representation. Nguyen's career spans decades, showcasing versatility in various entertainment roles.

Continue Reading

Jaimee Fourlis

Australian tennis player
Born
September 17th, 1999 25 years ago

Competed professionally in tennis by 2016. Participated in major tournaments such as the Australian Open. Achieved a career-high singles ranking of 149 in 2022. Represented Australia in various international competitions.

Continue Reading

J. Willard Marriott

Businessman, founded Marriott Corporation
Born
September 17th, 1900 124 years ago
Died
1985 40 years ago — 85 years old

An American businessman established a hospitality empire through the founding of the Marriott Corporation. Initially started with a root beer stand in 1927, expanded into the restaurant business and later entered the hotel industry. The first hotel, the Twin Bridges Motor Hotel, opened in Washington, D.C. in 1957. The company grew to include numerous hotel brands and restaurants, shaping the modern hospitality industry. Throughout the career, emphasized quality service and innovation in guest experiences. The company continues to be a leader in the hospitality field today.

Continue Reading

Other People Who Died on July 20th

Gérard Oury

French actor, director, screenwriter
Born
April 29th, 1919 106 years ago
Died
July 20th, 2006 18 years ago — 87 years old

An influential figure in French cinema, contributed as an actor, director, and screenwriter. Directed several popular films, including 'La Grande Vadrouille' and 'Le Corniaud,' which showcased a unique blend of comedy and adventure. Worked extensively in the film industry from the mid-20th century onward, becoming a prominent name in French films. The body of work spanned various genres, with a distinct style that resonated with audiences in France and beyond.

Continue Reading

James Alexander Calder

Canadian politician and educator
Born
September 17th, 1868 156 years ago
Died
July 20th, 1956 68 years ago — 87 years old

Served as the Canadian Minister of Militia and Defence from 1921 to 1926. Contributed to military and educational reforms during tenure. Advocated for improved training and mobilization of Canadian forces. Engaged in various initiatives to enhance the effectiveness of the military.

Continue Reading

Dumarsais Estimé

Haitian politician and 33rd President
Born
1900 125 years ago
Died
July 20th, 1953 71 years ago — 53 years old

Served as the 33rd President of Haiti from 1946 to 1950. Played a significant role in Haitian politics, advocating for social and economic reforms. Promoted education and public health initiatives during the presidency. His administration faced challenges from political opposition and economic difficulties, leading to his eventual exile.

Continue Reading

William Cosmo Monkhouse

English poet and literary critic
Born
March 18th, 1840 185 years ago
Died
July 20th, 1901 123 years ago — 61 years old

Born in 1840, a noted English poet and critic. Contributed significantly to the literary landscape of the 19th century through poetry that explored themes of nature and society. Worked as a reviewer for several periodicals, offering critiques of contemporary literature and contributing to the understanding of poetic forms. His critical essays provided insight into the works of other poets, and he was engaged in the promotion of poetry among the public. Monkhouse also produced a collection of poetry that reflected the aesthetics and sentiments of his time, achieving recognition within literary circles.

Continue Reading

Robert IV

French nobleman with land holdings
Born
1356 669 years ago
Died
July 20th, 1387 637 years ago — 31 years old

A notable French nobleman held significant territories during the late 14th century. Inherited the title and lands from previous family lineage, contributing to regional power dynamics. Engaged in military affairs and alliances common among nobility of the time, participating in various conflicts and political strategies within France.

Continue Reading

Artie Traum

American guitarist and songwriter
Born
1943 82 years ago
Died
July 20th, 2008 16 years ago — 65 years old

Acclaimed as a skilled guitarist, songwriter, and producer, contributions included work in folk and blues music. Achieved recognition for collaborations with notable artists and released several solo albums. Established a reputation in the music industry for a distinct slide guitar style and intricate fingerpicking techniques. Played an essential role in the music scene, particularly during the 1970s and 1980s, and influenced many up-and-coming musicians.

Continue Reading