Assertion: professional baseball | /r/CapableOf | begin with toronto maple leafs
Facets:
value: in the late 19th
type: TEMPORAL
value: in early 20th centuries
type: TEMPORAL
Source sentences:
text: Professional baseball has a long history in Canada, beginning with teams such as the London Tecumsehs, Montreal Royals, and Toronto Maple Leafs in the late 19th and early 20th centuries.