Archaeologists in Poland have discovered a 500-year-old compass that may have belonged to Nicolaus Copernicus, who is most famous for his heliocentric model of the solar system, in which the ...

A 16th century brass signet ring was discovered in the rubble of a monument in Poland, photos show. It has an oval shield and what appears to be initials.

In a recent archaeological excavation in the canonical gardens of Frombork, northern Poland, archaeologists have unearthed a 16th-century compass believed to have been used during the era of ...

A 16th century brass signet ring was discovered in the rubble of a monument in Poland, photos show. It has an oval shield and what appears to be initials.

A 16th century brass signet ring was discovered in the rubble of a monument in Poland, photos show. It has an oval shield and what appears to be initials.

A 16th century brass signet ring was discovered in the rubble of a monument in Poland, photos show. It has an oval shield and what appears to be initials.

A 16th century brass signet ring was discovered in the rubble of a monument in Poland, photos show. It has an oval shield and what appears to be initials.

A 16th century brass signet ring was discovered in the rubble of a monument in Poland, photos show. It has an oval shield and what appears to be initials.