How long did the selling of indulgences last?

The selling of indulgences, a practice primarily associated with the Catholic Church, gained significant prominence in the late Middle Ages, particularly from the 11th to the 16th centuries. It peaked during the early 16th century, leading to Martin Luther's 95 Theses in 1517, which criticized the practice and contributed to the Protestant Reformation. While the church officially curtailed the sale of indulgences in the wake of the Reformation, variations of the practice persisted in some forms until the Council of Trent (1545–1563) formally ended it.