Back 1661 en science French 1661 a tudományban Hungarian Науката во 1661 година Macedonian Vitenskapsåret 1661 NB 1661 na ciência Portuguese 1661 год в науке Russian 1661 nî kho-ha̍k ZH-MIN-NAN
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| 1661 in science |
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| Fields |
| Technology |
| Social sciences |
| Paleontology |
| Extraterrestrial environment |
| Terrestrial environment |
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The year 1661 in science and technology involved some significant events.