It is based on a game called Super Farmer (originally named "Hodowla zwierzątek" or "Animal Husbandry") created in Poland in 1943 by Karol Borsuk and his wife.
Karol Szymanowski | Karol Kuryluk | Karol: The Pope, The Man | Karol Świerczewski | Karol Podczaszyński | Karol: A Man Who Became Pope | Jakub Karol Parnas | Karol Mikuli | Karol Libelt | Karol Adamiecki | Karol Stanisław "Panie Kochanku" Radziwiłł | Karol Sabath | Karol Pniak | Karol Olszewski | Karol Martesko-Fenster | Karol Lipiński | Karol Lanckoroński | Karol Kurpiński | Karol Kossok | Karol Hubert Rostworowski | Karol Divín | Karol Borsuk |