Assertion: zeppelin | /r/CapableOf | begin working on rigid airship designs
Facets:
value: in the 1890s
type: TEMPORAL
Source sentences:
text: This led to the most successful airships of all time: the Zeppelins, named after Count von Zeppelin who began working on rigid airship designs in the 1890s, leading to the flawed LZ1 in 1900 and the more successful LZ2 in 1906.