 Nyora kupfuurira kweiyi ndima - Bloody Wednesday inoreva zviitiko zvaAugust 15, 1906 mu Congress Kingdom yePoland, uko Kurwisa Sangano rePoland Socialist Party OB PPS kwakaitisa nhevedzano yekurwiswa kwevaRussia, kunyanya mapurisa nevasori. Izvi zvakaitika mumamiriro ezvinhu eRevolution muHumambo hwePoland 19051907, uye yakamirira chimwe chezvinhu zvikuru zvikuru zvakaitika munhoroondo yeOB PPS. 