From Wikipedia, the free encyclopedia.
The year 1869 CE in science and technology included many events, some of which are listed
See also: 1868 in science, other events of 1869, 1870 in science, list of years in science.
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Wikipedia: 1869 in science |
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1869 in science From Wikipedia, the free encyclopedia. The year 1869 CE in science and technology included many events, some of which are listed See also: 1868 in science, other events of 1869, 1870 in science, list of years in science.
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