Ntlha e e Kwa Tlase
a Pele ga phetogo e kgolo ya October 1917, Russia e ne e dirisa khalendara ya Julius mme bontsi jwa dinaga di ne tsa simolola go dirisa khalendara ya Gregory. Ka 1917 khalendara ya Julius e ne e le kwa morago ka malatsi a le 13 fa e bapisiwa le ya Gregory. Morago ga phetogo e kgolo, batho ba Soviet ba ne ba simolola go dirisa khalendara ya Gregory, e le gore Russia e dirise khalendara e e tshwanang le ya dinaga tse dingwe. Le fa go ntse jalo, Kereke ya Orthodox e ne ya keteka mekete ya yone go ya ka khalendara ya Julius ba e bitsa gore ke khalendara ya “Segologolo.” Go ka direga gore o utlwe gore kwa Russia Keresemose e ketekwa ka January 7. Le fa go ntse jalo, o gakologelwe gore January 7 go ya ka khalendara ya Gregory ke December 25 mo khalendareng ya Julius. Ka jalo, Ba-Russia ba le bantsi ba rulagantse mekete ya bone ya Keresemose le Ngwaga o Mosha jaana: December 25, Keresemose e e ketekwang kwa dinageng tsa Bophirima; January 1, Ngwaga o Mosha o o sa amaneng le bodumedi; January 7, Keresemose ya Orthodox; January 14, Ngwaga o Mosha ka Mokgwa wa Segologolo.