Assertion: racing's race | /r/HasProperty | introduced at roosevelt raceway
Facets:
value: in new york city
type: LOCATION
value: in 1940
type: TEMPORAL
Source sentences:
text: racing under lights was introduced at Roosevelt Raceway in New York City in 1940 (there had been occasional night racing in the 1890s and under the lights in Toledo, Ohio, in 1927); and the mobile starting gate (a pair of retractable metal wings mounted on the rear of an automobile that moves off slowly, getting the horses off to an even running start, and then accelerates away and off the track) was instituted, also at Roosevelt, in 1946.