hasBeenObservedSince

URI: https://gptkb.org/prop/hasBeenObservedSince
5 triples
GPTKB property
Random triples
Subject Object
gptkb:1P/Halley ancient times
gptkb:Kometen Ancient times
gptkb:Comet_Halley ancient times
gptkb:M31 ancient times
gptkb:Halley_se_Komeet antieke tye