firstVersionYear
P51515
predicate
Indicates the calendar year in which the first version or initial release of something was created, published, or made available.
Observed surface forms (1)
- originalLaunchYear ×1
Sample triples (2)
| Subject | Object |
|---|---|
| MIL-STD-1553 databus | 1973 ⓘ |
| XFL | 2001 via predicate surface "originalLaunchYear" ⓘ |