 Nyora kupfuurira kweiyi ndima - Tumas aishandawo muhupenyu hwetsika dzeLithuania muVilnius. Aiva nhengo yebhodhi reLithuanian Scientific Society uye akapa mamwe emabhuku ake ega kuraibhurari yayo itsva. Aivewo nhengo yeLithuanian Art Society uye akapinda muRūta Society. Muna July 1910, Tumas akafamba semunyori wekuvhurwa kwepamutemo kweGrunwald Monument muKraków panguva yekupemberera kwegore rechi500 reHondo yeGrunwald. Nyaya yake yokutsoropodza yakabudiswa mupepanhau reUkraine. Akasiyanisa mhemberero yacho, yaipindwa nevakuru vakuru vakawanda, neMhemberero dzeNziyo dzeEstonia neLatvia uye akagumisa kuti mhemberero yeGrunwald haina kubatanidza zvakakwana vanhu vose. Vezvenhau vePoland vakapindura nokurwisa Tumas nokumupomera kuti aiva nemafungiro okurwisana nePoland. 