Hugo de Vries
Botanist and geneticist, mutation theory

Born
February 16th, 1848
177 years ago
Died
May 21st, 1935
90 years ago — 87 years old
Category
Scientists & Innovators
Country
Netherlands
Links & References
Contributions to genetics included the formulation of the mutation theory, which proposed that new species arise from sudden changes in traits. Conducted hybridization experiments on plants, particularly evening primroses, leading to significant findings in heredity and variation. Published works advanced the understanding of Mendelian inheritance, which laid foundational principles for modern genetics. De Vries also played a role in the revival of interest in Mendel's laws in the early 20th century, influencing future research in the field.
Developed the mutation theory of evolution
Conducted hybridization studies on evening primroses
Other People Born on February 16th
Eric I
Born in 1470, Eric I served as Duke of Brunswick-Lüneburg during the late 15th and early 16th centuries. His rule was characterized by attempts to consolidate power within his duchy and navigate the complex political landscape of the Holy Roman Empire. He participated in various military campaigns, which included conflicts against rival principalities. As a member of the House of Welf, he was involved in the regional politics of Northern Germany, aligning himself with influential family ties.
Continue ReadingWilliam Katt
An American actor, recognized for a prominent role in television series 'The Greatest American Hero' that aired from 1981 to 1983. The character, Ralph Hinkley, gained widespread popularity during its run. Katt also appeared in various films, including 'Carrie' (1976), a horror movie directed by Brian De Palma, where he played the role of a high school student. Over the years, Katt contributed to television with guest appearances on shows such as 'Smallville' and 'What About Brian'.
Continue ReadingJohn Schlesinger
A prominent English film director, active in the industry from the 1960s to the 2000s. Directed the acclaimed film 'Midnight Cowboy,' which won the Academy Award for Best Picture in 1970. Worked in both film and television, with a career that also included direction of 'The Day of the Locust' and 'Marathon Man.' Received numerous accolades, including an Academy Award for Best Director for 'Midnight Cowboy.'
Continue ReadingYuri Manin
Born in 1937, contributions included significant advancements in algebraic geometry and mathematical physics. Held positions at various prestigious institutions, including the University of Munich and the University of California, Santa Barbara. Authored influential works that shaped contemporary mathematics, particularly in areas like number theory and algebraic topology.
Continue ReadingHerb Williams
Played basketball for the Indiana Pacers in the NBA. Transitioned into coaching after retirement from professional playing. Served as an assistant coach for several teams, including the New York Knicks, where contributions to player development were acknowledged.
Continue ReadingShawne Williams
A basketball player who played for several teams in the NBA, including the Indiana Pacers and the Dallas Mavericks. Williams began his professional career in 2006 after being drafted by the Pacers. Throughout his career, he played as a forward and participated in notable games that showcased his skills. His tenure included stints in the NBA Development League, where he contributed to team successes.
Continue ReadingOther People Who Died on May 21st
Louis Johnson
This individual gained prominence as a bass player and music producer, contributing significantly to the funk and disco genres. His work in the late 1970s and 1980s as part of the musical duo The Brothers Johnson included hits like "Stomp!" and "I'll Be Good to You." As a session musician, he collaborated with multiple artists across various genres, making notable contributions that shaped recordings. Johnson's innovative playing style and rhythmic grooves left a lasting influence on future generations of musicians.
Continue ReadingChevalier d'Eon
A prominent figure in the 18th century, engaged in espionage and diplomacy, played a significant role in the politics of both France and Britain. Originally presented as a male during military service, the individual later assumed a female identity, gaining attention in both political and social circles. Contributed to various diplomatic missions and was involved in the political intrigue of the time, which included participation in the Seven Years' War. The dual identity sparked extensive discussions on gender and identity. Achievements included a lengthy diplomatic career and participation in significant historic events.
Continue ReadingAnn Little
Active in the early 20th century, this actress starred in silent films. Gained attention for performances in movies such as 'The Coming of Amos' (1913) and 'The Count of Monte Cristo' (1922). Transitioned to sound films but her prominence diminished with the advent of talkies. Continued to work in various acting roles throughout the late 1920s and early 1930s.
Continue ReadingEvgraf Fedorov
Contributed significantly to the field of mathematics, particularly in crystallography and mineralogy. Developed fundamental theories related to the symmetry of crystals and their classification. His work laid the groundwork for subsequent advancements in the study of crystalline structures and their properties. Fedorov's research is widely regarded in scientific literature and has influenced both academic and practical applications in mineralogy.
Continue ReadingJohn Eliot
Eliot was an English lawyer and politician who served as a Member of Parliament. He was recognized for his strong opposition to the policies of King Charles I. Eliot played a significant role in the events leading up to the English Civil War. In 1629, he was imprisoned for his opposition to the Crown, and he became a martyr for the cause of parliamentary supremacy. His writings and speeches in Parliament contributed to the discussions surrounding the rights of Parliament and the limitations of royal power.
Continue ReadingTommaso Campanella
Born in 1568, this thinker contributed significantly to philosophy, poetry, and theology during the Renaissance period. His most notable work, 'The City of the Sun', presents an ideal society. Throughout life, he faced imprisonment and persecution for his political and religious beliefs. Engaged in various philosophical debates, his ideas on social structure and governance pushed against the prevailing norms of his time.
Continue Reading