Assertion: knock | /r/HasProperty | known for example
Facets:
value: from the early 20th century
type: TEMPORAL
Source sentences:
text: 'Knock on wood' is known from the early 20th century; for example, The Syracuse Herald, February 1905:
text: 'Knock on wood' is known from the early 20th century; for example, The Syracuse Herald, February 1905: