I have gone to a Fulbright conference in Toruń, Poland. Turuń is the birthplace of Copernicus, who published the first detailed presentation of the Heliocentric (sun-centered) solar system in the year of his death in 1543. Copernicus is everywhere in Toruń. Here are the names of the floors at the motel that I stayed at, and the carpet, which has his signature and illustration from his famous book.