Portal:Poland/Did you know/32
- ...that the astronomer Nicolaus Copernicus (Mikołaj Kopernik) discovered that the Earth revolves around the Sun?
- ... that of the ninety historic Jewishhouse of prayer?
- ...that a revolutionary semiconductor called the blue laser was constructed by a group of scientists from the Polish Academy of Sciencesin 2001?
- ...that there is a due to the character's popularity?
- ...that Polish mathematicians and cryptologists broke the Enigmacipher?