Assertion: car | /r/HasProperty | introduced by ben field
Facets:
value: in 1865
type: TEMPORAL
value: commercially
type: MANNER
Source sentences:
text: The first sleeping cars were put in service on American railroads as early as the 1830s, but these were makeshift; the first car designed for comfortable nighttime travel was the Pullman sleeper, which was commercially introduced by George M. Pullman and Ben Field in 1865.