Assertion: joshua tree | /r/HasProperty | established as national monument
Facets:
value: by a presidential proclamation
type: CAUSE
value: thanks to hoyt’s efforts
type: CAUSE
value: on august
type: TEMPORAL
Source sentences:
text: Joshua Tree was established as a national monument on August 10, 1936 by a Presidential Proclamation signed by President Franklin Roosevelt, thanks to Hoyt’s efforts.