Assertion: ship | /r/CapableOf | sight its ice shelf
Facets:
value: in 1820
type: TEMPORAL
Source sentences:
text: According to various organisations (the National Science Foundation, NASA, the University of California, San Diego, the Russian State Museum of the Arctic and Antarctic, among others), ships captained by three men sighted Antarctica or its ice shelf in 1820: Fabian Gottlieb von Bellingshausen (a captain in the Imperial Russian Navy), Edward Bransfield (a captain in the Royal Navy), and Nathaniel Palmer (a sealer from Stonington, Connecticut).