Assertion: diving | /r/HasProperty | its original purpose
Facets:
value: in 1864
type: TEMPORAL
Source sentences:
text: Gagnan, employed at Air Liquide, had miniaturized and adapted a Rouquayrol-Denayrouze regulator used for gas generators following severe fuel restrictions due to the German occupation of France; Cousteau suggested it be adapted for diving, which in 1864 was its original purpose.