Assertion: college basketball | /r/CapableOf | boom in 1930
Facets:
value: because of doubleheaders in new york city
type: CAUSE
Source sentences:
text: It was popular enough to become a demonstration sport at the 1904 Olympics in St. Louis, and boomed in popularity in the 1930s because of doubleheaders in New York City, the 1936 Olympics and the start of two national postseason tournaments.