Back 1909 en science French 1909 במדע HE 1909 a tudományban Hungarian Науката во 1909 година Macedonian Vitskap i 1909 NN Vitenskapsåret 1909 NB 1909 w nauce Polish 1909 na ciência Portuguese 1909 год в науке Russian Vetenskapsåret 1909 Swedish
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| 1909 in science |
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| Fields |
| Technology |
| Social sciences |
| Paleontology |
| Extraterrestrial environment |
| Terrestrial environment |
| Other/related |
The year 1909 in science and technology involved some significant events, listed below.