In this house, Nicolaus Copernicus was born, 19 February 1473 in Torun, Poland. And a few years later I visited the place... ;)
Thanks Michal for a great guiding and nice stay at your place. Looking forward to see you in Umeå soon.
"To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge." - Nicolaus Copernicus