Topic:astronomyuranology
Synset:epoch
Hypernyms:date
Inherited Hypernyms:epochdatecalendar daytime periodfundamental quantitymeasureabstractionentity
Inherited Hypernyms:epochdatecalendar monthtime periodfundamental quantitymeasureabstractionentity
Inherited Hypernyms:epochdatecalendar yearyeartime periodfundamental quantitymeasureabstractionentity