1834 - Birthday of Dmitry Mendeleev
Dmitri Mendeleev was a Russian chemist who lived between 1834-1907. He created the first version of the periodic table of elements
1923 - Death of Wilhelm Roentgen
Wilhelm Roentgen was a German physicist who lived between 1845-1923. His accidental discovery of x-rays in 1895 changed the fields of physics and medicine. For his brilliant experimental work, Roentgen received the first Nobel Prize, in 1901.
1847 - Birthday of Thomas Edison
Thomas Edison was an American inventor who lived between 1847-1931. He patented over a thousand inventions, including the light bulb, phonograph and a motion picture machine.
1809 - Birthday of Charles Darwin
Charles Darwin was an English Naturalist who lived between 1809-1882. He laid the foundations for the modern science of biology, and changed how other scientists understood the appearance of life on Earth.
In 1859 Darwin published a book called The Origin of Species by Means of Natural Selection, which started a scientific revolution.
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