"The Burning of our Holy Talmud"

It's not just the physical elimination of the Jewish people that our enemies have sought for thousands of years, it's the spiritual extinction as well. Some of the most tragic episodes in Jewish history were the countless attempts of the xtian church to destroy all remnants of the Talmud, the basis for Jewish Law. There is no way the Torah can be understood without an Oral explanation to go along with it, which is why the Talmud is the backbone of Judaism (see the link below in the comments for further details). 

The burning of the Talmud was repeatedly urged by the catholic popes. In France, Louis IX ordered further confiscations in 1247 and 1248 and upheld the principle in an ordinance of December 1254. It was confirmed by Philip III in 1284 and Philip IV in 1290 and 1299. A further burning was ordered in Toulouse in 1319 by the inquisitor Bernard Gui and in Perpignan. The conflagration in Paris was compared by the contemporary scholar Meir ben Baruch of Rothenberg to the destruction of the Temple in an elegy Sha'ali Serufah ("Ask is it well, O thou consumed in fire") included in the kinah of the Ninth of Av.