An haifi karen farko a shekara ta 1930 kuma kare na farko da ya yi rajista da kungiyar Kennel ta Amurka shine Stina v Felsenmeer, 1931. Bayan yakin duniya na biyu jinsin ya zama sananne. A lokacin an san shi da farko a matsayin kyakkyawan kare biyayya.
#1
A tsakiyar 1990s, shaharar Rottweiler ta kasance a kololuwar sa lokacin da akwai fiye da 100,000 da suka yi rajista a cikin Ƙungiyar Kennel ta Amurka. Idan kai kare ne, shahara ba lallai ba ne abu mai kyau. Ba sabon abu ba ne ga masu kiwo da masu kiwo da ba su dace ba su yi ƙoƙarin yin kuɗi a kan shaharar nau'in da kuma samar da ƴan ƴan tsana ba tare da duba lafiyarsu da yanayin su ba. Wannan kuma ya faru da nau'in Rottweiler, har zuwa mummunan talla da rage buƙata.
#2 Sadaukarwa, masu kiwo masu daraja suna ganin wannan a matsayin wata dama ce ta canza nau'in kuma tabbatar da cewa Rottweilers sune irin karnukan da ake so su kasance. A yau, Rottweilers suna matsayi na 17 a cikin nau'ikan nau'ikan nau'ikan 155 da aka yiwa rajista da AKC.
#3
A garin Rottweil na Swabiya, dillalan shanu da garken su sun hadu tun zamanin Romawa. Ƙarnukan shanu masu ƙarfi, masu dagewa, masu kuzari, masu ƙarfin hali da ƙaƙƙarfan karnukan shanu sune kayan aikinsu mafi mahimmanci.