page_title: János Bolyai
hierarchical_section_title: János Bolyai
caption_attribution_description: English: Memorial plaque of János Bolyai in Olomouc (Czech Republic). Čeština: János Bolyai – pamětní deska v Olomouci. Magyar: Bolyai János emléktáblája Alamócban (Cseh Köztársaság).
context_page_description: János Bolyai or Johann Bolyai, was a Hungarian mathematician, who developed absolute geometry—a geometry that includes both Euclidean geometry and hyperbolic geometry. The discovery of a consistent alternative geometry that might correspond to the structure of the universe helped to free mathematicians to study abstract concepts irrespective of any possible connection with the physical world.
context_section_description: János Bolyai (Hungarian: [ˈjaːnoʃ ˈboːjɒi]; 15 December 1802 – 27 January 1860) or Johann Bolyai, was a Hungarian mathematician, who developed absolute geometry—a geometry that includes both Euclidean geometry and hyperbolic geometry. The discovery of a consistent alternative geometry that might correspond to the structure of the universe helped to free mathematicians to study abstract concepts irrespective of any possible connection with the physical world.
caption: Memorial plaque of János Bolyai in Olomouc, (Czech Republic)
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