Nor do Christians have a record of mass slaughtering of Jews. That was carried out by very anti-Christian Nazi secularists. To pin their crimes on Christians is its own form of blood libel.
But there was a history of European pogroms long before the Nazi's took over Germany, centered in Russia (pre-Communist revolution).
Given the era one can say with some certainty that the persecutors were Christian (although not following Christian doctrine).
Significant pogroms in the Russian Empire included the Odessa pogroms, Warsaw pogrom (1881), Kishinev pogrom (1903), Kiev pogrom (1905), and Białystok pogrom (1906). After the collapse of the Russian Empire in 1917, several pogroms occurred amidst the power struggles in Eastern Europe, including the Lwów pogrom (1918) and Kiev pogroms (1919).