Peter Gustav Lejeune Dirichlet

German mathematician and academic

Peter Gustav Lejeune Dirichlet - German mathematician and academic
Born

February 13th, 1805
220 years ago

Died

May 5th, 1859
165 years ago — 54 years old

Category

Scientists & Innovators

Country

Germany

Links & References

Contributed significantly to number theory, analysis, and mathematical physics. Introduced Dirichlet's theorem on arithmetic progressions, which established conditions for prime numbers in specific sequences. Developed the concept of a Dirichlet series and made advances in the study of functions, particularly Dirichlet conditions. Served as a professor at the University of Göttingen for many years, influencing future generations of mathematicians.

Introduced Dirichlet's theorem on arithmetic progressions

Developed Dirichlet series in number theory

Contributed to the study of mathematical functions

Other People Born on February 13th

Kate Roberts

Welsh author and activist
Born
February 13th, 1891 134 years ago
Died
April 4th, 1985 39 years ago — 94 years old

A prominent author and activist from Wales. Wrote extensively in both Welsh and English, focusing on themes relating to social issues and the Welsh identity. Contributed significantly to the field of literature, particularly in the early to mid-20th century. Engaged in various activist efforts, particularly concerning the rights and representation of the Welsh language. Received several accolades for literary work, influencing future generations of writers.

Continue Reading

Harold Mahony

Scottish-Irish tennis player, Wimbledon winner
Born
February 13th, 1867 158 years ago
Died
June 27th, 1905 119 years ago — 38 years old

Born in 1867, a tennis player competed in the late 19th century. Achieved significant recognition by winning the men's doubles title at Wimbledon in 1896 alongside partner Joshua Pim. The victory marked a key achievement in his career. Participated in various tennis competitions during a time when the sport was rapidly gaining popularity. Contributed to the development of tennis in Scotland and Ireland through participation in national events and tournaments.

Continue Reading

Jean-François Lisée

Canadian politician and journalist
Born
February 13th, 1958 67 years ago

A prominent Canadian journalist and politician, held various roles in government and media. Worked as the Minister of Intergovernmental Affairs in Quebec and served as a member of the National Assembly. Engaged in journalism, producing significant written work that analyzed political issues. Contributed to discussions on Quebec sovereignty and politics through various publications and public speaking engagements.

Continue Reading

Marian Dawkins

Biologist and academic in animal welfare
Born
February 13th, 1945 80 years ago

A prominent biologist focused on the welfare of animals, this individual contributed significantly to understanding animal cognition and behavior. The career included positions at renowned institutions, where research emphasized the importance of welfare in domestic and wild animals. Engaged in educating both the public and academics, the work highlighted ethical considerations in animal treatment. Publications included influential papers and books that shaped contemporary discussions on animal rights and welfare.

Continue Reading

Bess Truman

First Lady of the United States
Born
February 13th, 1885 140 years ago
Died
1982 43 years ago — 97 years old

Served as First Lady from 1945 to 1953 during the presidency of husband Harry S. Truman. Actively engaged in social issues, focusing on veterans' welfare and supporting the arts. Played a significant role in the establishment of the Harry S. Truman Library and Museum in Independence, Missouri. Maintained a keen interest in the role of the press and the importance of communication between the presidency and the public.

Continue Reading

Hartmann Schedel

German physician and chronicler
Born
February 13th, 1440 585 years ago
Died
1514 511 years ago — 74 years old

Born in 1440, this physician contributed significantly to the field of medicine and historiography. Renowned for creating the Nuremberg Chronicle, one of the earliest printed books containing illustrations and historical accounts, it provided a comprehensive history of the world from a religious perspective. The work showcased advancements in printing technology, enhancing the dissemination of knowledge during the late 15th century. He studied at the University of Leipzig and worked in various cities including Nuremberg, where his scholarly pursuits flourished.

Continue Reading

Other People Who Died on May 5th

Henry Sidney

Irish politician, Lord Deputy of Ireland
Born
1529 496 years ago
Died
May 5th, 1586 438 years ago — 57 years old

Served as Lord Deputy of Ireland during the late 16th century. Played a significant role in the governance of Ireland under English rule. His tenure focused on the management of rebellious factions and the establishment of order within the region. Engaged in efforts to reinforce English authority and improve relations with the Irish nobility. After his departure, his contributions to the English administration in Ireland continued to influence subsequent policies.

Continue Reading

Hugo Banzer

Bolivian General, President
Born
May 10th, 1926 98 years ago
Died
May 5th, 2002 22 years ago — 75 years old

Serving as a general in the Bolivian military, held the position of President of Bolivia from 1971 to 1978 and again from 1997 to 2001. During the first term, implemented policies aimed at economic development and modernization while facing significant political challenges. His regime is characterized by the declaration of a nationalist agenda and repression of opposition forces. The return to power in 1997 marked a significant phase in Bolivia's democratic transition post-coup. Efforts to revitalize the economy continued, amidst ongoing social issues and civil unrest.

Continue Reading

Clifton Hillegass

American publisher, founded CliffsNotes
Born
April 18th, 1918 106 years ago
Died
May 5th, 2001 23 years ago — 83 years old

Founded CliffsNotes, a series of study guides that simplify classic literature and academic subjects, influencing education across the United States. The concept originated from a desire to aid students in understanding complex texts. These study aids became widely used by students for exam preparation and classwork assistance. CliffsNotes became synonymous with literature study guides, eventually expanding into various subjects and educational resources. The brand maintained a prominent presence in American education for decades.

Continue Reading

Jeannie Epper

Stuntwoman in Hollywood action films
Born
1941 84 years ago
Died
May 5th, 2024 0 years ago — 83 years old

An accomplished stuntwoman and actress, contributions spanned several decades in the film industry. Gained recognition for work in various action films including ‘The Terminator’ and ‘Die Hard’. Participated in high-profile productions, showcasing expertise in stunts and fight choreography. Worked alongside notable actors and filmmakers, establishing a reputation in Hollywood. Achievements included performing stunts for prominent lead actors, making a significant mark in the stunt community. In addition to stunts, also acted in various television shows, further diversifying contributions to the entertainment industry.

Continue Reading

John Waters

Film director and screenwriter of Hairspray
Born
April 22nd, 1946 78 years ago
Died
May 5th, 1965 59 years ago — 19 years old

An influential figure in independent cinema, contributed as a director, producer, and screenwriter. Gained prominence in the 1970s with films characterized by their unconventional narratives and camp aesthetics. Achieved widespread recognition with the 1988 film 'Hairspray', which later became a successful Broadway musical and a Hollywood remake. Waters's works often explore themes of identity, marginalized communities, and social norms.

Continue Reading

A. Sabapathy

Journalist and politician in Sri Lanka
Born
1853 172 years ago
Died
May 5th, 1924 100 years ago — 71 years old

A prominent journalist and politician, contributed significantly to the political landscape of Sri Lanka in the early 20th century. Advocated for social justice and education reform. Actively engaged in journalism, addressing colonial issues and promoting the rights of the Tamil community. Served in various political positions, playing a critical role in local governance and national discussions on civil rights. Died in 1924, leaving a legacy in Sri Lankan politics and journalism.

Continue Reading