Assertion: blacksmith's skill | /r/HasProperty | passed down person
Facets:
value: to person
type: TRANSITIVE-OBJECT
value: in writing
type: TEMPORAL
Source sentences:
text: Relatively little information about carpentry is available from pre-history (before written language) or even recent centuries because the knowledge and skills were passed down person to person, rarely in writing, until the printing press was invented in the 15th century and builders began regularly publishing guides and pattern books in the 18th and 19th centuries.