operationPeriod

URI: https://gptkb.org/prop/operationPeriod
4 triples
GPTKB property
Random triples
Subject Object
gptkb:Oklo about 2 billion years ago
gptkb:Boblo_Island_ferry 1993
gptkb:Boblo_Island_ferry late 19th century
gptkb:Donnie_Brasco_case 1976-1981