Assertion: indigo dye | /r/HasProperty | the oldest known dyes
Facets:
value: in java
type: LOCATION
Source sentences:
text: Natural indigo dye made from Indigofera is among the oldest known dyes in Java, and its local name tarum has lent its name to the Citarum river and the Tarumanagara kingdom, which suggests that ancient West Java was once a major producer of natural indigo.