Charles Darwin
1809 - 1882

 

159 years since first publication
of "On the Origin of Species"
on 24 November 1859.

 
Science
The dictionary* definition of science is:

  • systematic knowledge of natural or physical phenomena

  • truth ascertained by observation, experiment and induction

  • ordered arrangement of facts


The etymological** derivation of science is from the Latin scientia, knowledge and sciscere, to seek to know.

 
* Collins National Dictionary, 1966
** Partridge, Origins (a short etymological dictionary of modern English), 1958 - 1966
Dmitri Mendeleev
1834 - 1907
Mendeleev

 

150 years since first publication of
"Periodic Table of Chemical Elements"
on 6 March 1869.