Wikidata entity: Q3137024
| P373 | Commons category | String | History of optics | ??? |
| P1269 | facet of | ... | Q14620 (optics) | optics |
| P31 | instance of | ... | Q17524420 (aspect of history) | aspect of history |
| P361 | part of | ... | Q212881 (history of physics) | history of physics |
| P910 | topic's main category | ... | Q91016080 (Category:History of optics) | Category:History of optics |
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