Assertion: racquetball | /r/MadeOf | official sport
Facets:
value: in 1952
type: TEMPORAL
Source sentences:
text: Racquetball was made an official sport in 1952 under the name of "paddle rackets".
text: Racquetball was made an official sport in 1952 under the name of "paddle rackets".
text: Racquetball was made an official sport in 1952 under the name of "paddle rackets".