Assertion: steam locomotive | /r/HasProperty | developed in the united kingdom
Facets:
value: during the early 19th century
type: TEMPORAL
Source sentences:
text: The world's first steam locomotive was developed in 1804 in the United Kingdom; America's first major steam engine came in 1830.
text: Steam locomotives were first developed in the United Kingdom during the early 19th century and used for railway transport until the middle of the 20th century.