Assertion: ship's boat | /r/HasProperty | tested on the neckar river
Facets:
value: by wilhelm maybach
type: OTHER
value: by gottlieb daimler
type: OTHER
value: in 1886
type: TEMPORAL
Source sentences:
text: The earliest boat to be powered by a petrol engine was tested on the Neckar River by Gottlieb Daimler and Wilhelm Maybach in 1886, when they tested their new "longcase clock" engine.