Premise: In 1543 Nicholas Copernicus, born in Toruen and a graduate of the Jagiellonian University in Krakew, published his groundbreaking and astronomy-altering treatise, De revolutionibus orbium Coeliestium, which positioned the sun and not the earth as the center of the universe.

Hypothesis: Nicholas Copernicus proposed that the sun was the center of the universe.
Relation: entailment