Contemporary accounts, which claim that Jews murdered a boy in a ritual manner in order to use his blood, are resurrecting the medieval canard that Jews use the blood of Christian babies for their ritual purposes during pre-Passover days. On April 11, 1690, a few days before the beginning of Passover, 6 year-old Gavril Belostoksky allegedly was found murdered and drained of his blood in his village of Zverki, which was at the time a Belarusian town, but is now in Polish territory. Soon thereafter, the accusation that he had been murdered by Jews who needed his blood to bake matzoth was spread throughout Belarus. The libel was bolstered in 1844 in Vladimir Dal's book, ""Investigation of the Murder of Christian Babies by Jews and the Use of Their Blood."" The Russian Orthodox Church canonized Gavril in the 20th century as the patron saint of sick children; he is commemorated in the beginning of each May.