Assertion: iron hulled sailing ship | /r/HasProperty | built
Facets:
value: from the 1870s
type: TEMPORAL
value: due to their ability
type: CAUSE
value: mainly
type: DEGREE
Source sentences:
text: Iron-hulled sailing ships were mainly built from the 1870s to 1900, when steamships began to outpace them economically, due to their ability to keep a schedule regardless of the wind.