Back 1805 en science French 1805 במדע HE 1805 a tudományban Hungarian Науката во 1805 година Macedonian Vitskap i 1805 NN Vitenskapsåret 1805 NB 1805 na ciência Portuguese 1805 год в науке Russian Vetenskapsåret 1805 Swedish 1805 nî kho-ha̍k ZH-MIN-NAN
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| 1805 in science |
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| Fields |
| Technology |
| Social sciences |
| Paleontology |
| Extraterrestrial environment |
| Terrestrial environment |
| Other/related |
Significant events in 1805 in science and technology are listed.