Also on This Day in History January 29
Discover what happened on January 29 with HISTORY's summaries of major events, anniversaries,
famous births and notable deaths.
Births on This Day, January 29
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1930
Norio Ohga
Japanese business executive who as a former president and chairman of Sony is credited with developing the compact disc.
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1927
Lewis Urry
Lewis Frederick Urry was a Canadian-American chemical engineer who invented the ubiquitous alkaline batteries and, later, lithium batteries.
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1850
Lawrence Hargrave
Australian aeronaut and inventor best known for his invention of the box kite.
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1773
Friedrich Mohs
German mineralogist who devised the Mohs scale to compare mineral harness, illustrated by ten common or readily-available minerals.
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1810
Ernst Eduard Kummer
German mathematician whose introduction of ideal numbers, which are defined as a special subgroup of a ring, extended the fundamental theorem of arithmetic to complex number fields.
Deaths on This Day, January 29
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1933
Fritz Haber
German physical chemist, winner of the Nobel Prize for Chemistry (1918) for his development of a method of synthesizing ammonia (1909) directly from nitrogen and hydrogen.
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1859
Seth Thomas
American clock manufacturer who was one of the pioneers in the mass production of clocks.
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1934
Dukinfield Henry Scott
English paleobotanist and leading authority of his time on the structure of fossil plants, one of those who laid the foundations of paleobotany.
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1929
Thomas Burr Osborne
American biochemist who made major contributions to understanding the chemistry of vegetable proteins.
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1883
Charles Sédillot
He was a French surgeon who coined the word microbe for a microorganism in 1871, which Émile Littré included in the 1886 edition of his Dictionary of Medicine.