Back 1645 en science French 1645 a tudományban Hungarian Науката во 1645 година Macedonian Vitenskapsåret 1645 NB 1645 год в науке Russian 1645 nî kho-ha̍k ZH-MIN-NAN
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| 1645 in science |
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| Fields |
| Technology |
| Social sciences |
| Paleontology |
| Extraterrestrial environment |
| Terrestrial environment |
| Other/related |
The year 1645 in science and technology involved some significant events.