Wikidata entity: Q32636721
| P971 | category combines topics | ... | Q18787 (1930) | 1930 |
| P301 | category's main topic | ... | Q2811525 (1930 in aviation) | 1930 in aviation |
| P373 | Commons category | String | 1930 in aviation | ??? |
| P156 | followed by | ... | Q32636726 (Category:1931 in aviation) | Category:1931 in aviation |
| P155 | follows | ... | Q32636717 (Category:1929 in aviation) | Category:1929 in aviation |
| P31 | instance of | ... | Q59541917 (Wikimedia topic category) | Wikimedia topic category |
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log id: 6623156