Assertion: lake | /r/HasProperty | sighted by european
Facets:
value: in 1858
type: TEMPORAL
Source sentences:
text: The lake existed and was known to many Africans in the catchment area long before it was sighted by a European in 1858 when the British explorer John Hanning Speke reached its southern shore while on his journey with Richard Francis Burton to explore central Africa and locate the Great Lakes.