The protestant reformation was born out of disagreement over the catholic church's sale of indulgences offerings sacraments

    Indulgences

Explanation:  The very term of indulgence in the Catholic Church refers to the possibility of reducing the punishment after death due to committed sins during life. The punishment can be reduced when passing through the Purgatory, and so mitigate the punishment. Thus, the concept of cleansing when passing through the Purgatory refers to the period after death. However, the Church offered indulgences for sale, even for life, and thus, according to their claim, the sins would be reduced. This caused the reaction of Martin Luther and the attempt to reform within the Church, which ended with the appearance of the Protestant Church.