John Venn

Mathematician and philosopher, Venn diagram

John Venn - Mathematician and philosopher, Venn diagram
Born

August 4th, 1834
191 years ago

Died

April 4th, 1923
102 years ago — 88 years old

Category

Thinkers & Philosophers

Country

United Kingdom

Links & References

Contributed significantly to the field of mathematics and philosophy. Developed the Venn diagram, which visually represents logical relations between sets. Authored several works on symbolic logic and probability theory, enhancing the understanding of these subjects. Participated actively in philosophical discussions of his time, focusing on logic and its applications in mathematics.

Developed the Venn diagram

Published 'The Principles of Empirical Logic'

Other People Born on August 4th

François Hédelin

French cleric and playwright, author
Born
August 4th, 1604 421 years ago
Died
1676 349 years ago — 72 years old

A prominent French cleric and playwright from the 17th century, contributed significantly to the development of French theatrical criticism. Authored 'La Pratique du théâtre,' which outlined the principles of drama and stagecraft. Influenced the shaping of French classical theatre through critical analysis of performances and playwrights. Engaged in ecclesiastical duties while pursuing literary ambitions.

Continue Reading

Luis Aponte Martínez

Cardinal and Archbishop of San Juan
Born
August 4th, 1922 103 years ago
Died
April 10th, 2012 13 years ago — 89 years old

Ordained a priest in 1950, served in various roles within the Catholic Church. Appointed as Archbishop of San Juan in 1973, held this position until retirement in 2004. Elevated to the rank of cardinal in 1973. Focused on pastoral care and community outreach in the archdiocese. Contributed to the development of Catholic education and social programs in Puerto Rico.

Continue Reading

Jack Cunningham

English politician and Cabinet Minister
Born
August 4th, 1939 86 years ago

Born in 1939, a British politician held various roles in government. Served as Member of Parliament and held the position of Minister for the Cabinet Office. Actively participated in key political discussions during the late 20th century, particularly focused on social and economic policies. Contributed to legislative processes and influenced party direction alongside fellow politicians.

Continue Reading

Johann Gottlob Lehmann

Meteorologist and geologist, created stratigraphy
Born
August 4th, 1719 306 years ago
Died
January 22nd, 1767 258 years ago — 47 years old

Contributed to the fields of meteorology and geology. Formulated principles of stratigraphy, which laid the groundwork for understanding the geological layers of the Earth. Developed methods for classifying minerals and rocks in a systematic way. Published works on geological formations and processes, influencing future geological studies and practices.

Continue Reading

John Scaddan

Australian politician, 10th Premier
Born
August 4th, 1876 149 years ago
Died
November 21st, 1934 90 years ago — 58 years old

Served as the 10th Premier of Western Australia from 1911 to 1916. Led the government during a period marked by significant social reform and economic development, with a focus on public works and infrastructure. Spearheaded the establishment of several key projects, including the first Labor government in Western Australia, which laid the groundwork for future governance in the state.

Continue Reading

Mark Milligan

Australian footballer with World Cup experience
Born
August 4th, 1985 40 years ago

A professional footballer from Australia, gained recognition as a versatile player in defense and midfield. Played for several clubs, including Newcastle Jets, Sydney FC, and Melbourne Victory, achieving domestic league success. Represented the Australian national team in multiple international tournaments, including the FIFA World Cup and the AFC Asian Cup, contributing to Australia's efforts on the global stage.

Continue Reading

Other People Who Died on April 4th

Priscilla Lane

American actress starring in wartime films
Born
June 12th, 1915 110 years ago
Died
April 4th, 1995 30 years ago — 79 years old

Gained prominence in the 1940s through roles in major films. Starred in 'Arsenic and Old Lace' alongside Cary Grant, showcasing comic talent. Featured in 'The Roaring Twenties' with James Cagney, contributing to the film's critical success. Participated in World War II-era productions that reflected the era's sentiments.

Continue Reading

Alexander Leslie

Scottish field marshal, 1st Earl of Leven
Born
1580 445 years ago
Died
April 4th, 1661 364 years ago — 81 years old

A prominent military leader during the Thirty Years' War, held the title of 1st Earl of Leven. Commanded Scottish forces in critical engagements. Played a significant role in the Scottish Covenanter army, leading troops in various battles against Royalist forces. Served as a commander during the conflict in England, establishing a reputation as a skilled tactician.

Continue Reading

William Henry Harrison

9th President of the United States
Born
February 9th, 1773 252 years ago
Died
April 4th, 1841 184 years ago — 68 years old

Served as the 9th President of the United States from March to April 1841. Prior to his presidency, held the position of Governor of the Indiana Territory and gained national prominence as a military leader during the War of 1812. Led American forces to victory in the Battle of Tippecanoe in 1811 and the Battle of the Thames in 1813, which contributed to his reputation as a military hero.

Continue Reading

Benedict the Moor

Sicilian Franciscan friar and saint
Died
April 4th, 1589 436 years ago — None years old

A Franciscan friar who lived in Sicily, dedicated life to spirituality and charity. Canonized as a saint due to reputed miracles and contributions to the prayer community. His devotion to the poor and commitment to religious service garnered a significant following among the faithful. Renowned for a simple lifestyle and deep faith, he served as a model for many in the Franciscan order. Leadership in the local community illustrated profound spiritual influence during and after lifetime.

Continue Reading

Karen Spärck Jones

Computer Scientist and Academic
Born
August 26th, 1935 90 years ago
Died
April 4th, 2007 18 years ago — 71 years old

Contributions to information retrieval and natural language processing characterized the career of this English computer scientist. Spárck Jones developed the concept of term frequency-inverse document frequency (TF-IDF), a fundamental technique in text mining and information retrieval. The scholar participated in various academic institutions, fostering research in computational linguistics and contributing to the development of algorithms that enhanced the efficiency of search engines. Throughout her career, she advocated for women in computing, encouraging greater representation and involvement in the field.

Continue Reading

Early Wynn

Baseball player and sportscaster
Born
January 6th, 1920 105 years ago
Died
April 4th, 1999 26 years ago — 79 years old

A professional baseball player, coach, and sportscaster. Played as a pitcher in Major League Baseball for the Cleveland Indians, Chicago White Sox, and Washington Senators. Inducted into the Baseball Hall of Fame in 1972. Known for a successful career spanning 23 seasons, achieving over 300 career wins. Transitioned into broadcasting after retirement, providing commentary for baseball games.

Continue Reading