Origins & Early Life

Felix Hausdorff ( HOWS-dorf, HOWZ-dorf; November 8, 1868 – January 26, 1942) was a German mathematician, pseudonym Paul Mongré (à mon gré (Fr.) = "according to my taste"), who is considered to be one of the founders of modern topology and who contributed significantly to set theory, descriptive set theory, measure theory, and functional analysis. Hausdorff was Jewish, and life became difficult for him and his family after the Kristallnacht of 1938. The next year he initiated efforts to emigrate to the United States, but was unable to make arrangements to receive a research fellowship. On 26 January 1942, Hausdorff, along with his wife and his sister-in-law, died by suicide by taking an overdose of veronal, rather than comply with German orders to move to a concentration camp in Endenich.

Pivotal Works & Achievements

Hausdorff's father, the Jewish merchant Louis Hausdorff (1843–1896), moved with his young family to Leipzig in the autumn of 1870, and over time worked at various companies, including a linen-and cotton goods factory. He was an educated man and had become a Morenu at the age of 14. He wrote several treatises, including a long work on the Aramaic translations of...

Enduring Legacy & Impact

The historical impact and works continue to influence the modern world.

Contemporary Figures & Related Historical Timelines

• Adah Isaacs Menken — Contemporary (Died in 1868) (1868): American actress, painter, and poet known for sensational stage performances.
• Annie S. D. Maunder — Contemporary (Born in 1868) (1868): Pioneering Irish astronomer known for discovering the Maunder Minimum and sunspot cycles.
• Arnold Sommerfeld — Contemporary (Born in 1868) (1868): Pioneering theoretical physicist known for quantum and atomic structure models.
• Ama Ata Aidoo — Contemporary (Born in 1942) (1942): Pioneering Ghanaian writer, poet, and academician celebrated for feminist themes.
• Amitabh Bachchan — Contemporary (Born in 1942) (1942): Iconic figure of Hindi cinema, celebrated for versatility and enduring stardom.
• Anita Roddick — Contemporary (Born in 1942) (1942): Pioneering activist and founder of The Body Shop, championing ethical consumerism.
• Adam Johann von Krusenstern — Shared historical date (11-08 · Born) (1770): Russian admiral and explorer, famed for leading the first Russian circumnavigation.
• Alain Delon — Shared historical date (11-08 · Born) (1935): Iconic French actor, producer, and cinematic leading man of the 20th century.
• A. E. van Vogt — Shared historical date (01-26 · Died) (2000): Influential Canadian-American science fiction writer known for bizarre narratives.
• Akio Morita — Shared historical date (01-26 · Born) (1921): Visionary Japanese entrepreneur and co-founder of Sony.
• 1868 Historical Timeline & Archive — Explore world events and figures from 1868
• November 8 (11-08) On This Day — Historical birthdays and events on November 8
• 1942 Historical Timeline & Archive — Explore world events and figures from 1942
• January 26 (01-26) On This Day — Historical events and memorials on January 26