Potato is our regional vegetable, we call it pyra (the word pyra is derived from the word Peru):

http://www.poster.pl/poster/kaja_rys...a_wielkopolska



Potato costumes during the Potato Holiday, Pyra Holiday (Święto Pyry):





Map: https://www.potatopro.com/world/potato-statistics



Lately I tested with YSEQ for some SNPs and it turns out, that I belong to the Iberian subclade R1b-FGC31068:

http://ytree.net/DisplayTree.php?blockID=618&star=false

So maybe my direct paternal ancestor was the one who first introduced potatoes to Poland from Spanish Peru?

Or... Columbus?: https://www.theapricity.com/forum/sh...us-was-Polish!

Before WW1 my region was the most advanced part of the German Empire in terms of producing potatoes:

https://www.youtube.com/watch?v=z6-poUU6Rac#t=8m00s

Potato production before WW1:

My region - 1300 kg per inhabitant
Germany - 570 kg per inhabitant