Abstract
The article intends to argue that the roots of religious freedom in the West can be found many centuries before the time of the Reformation, namely in the writings of Christian apologists who wrote in defense of the right to practice the Christian faith in the Roman Empire, in the political context of the time, which was otherwise tolerant of the religious pluralism present in its space. Moreover, we talk about Quintus Septimius Florens Tertullianus, known as Tertullian (160-225): "the first theologian of the West" and "the first political theologian." In last, we will argue that religious freedom is a natural right according to the philosophical and political developments over the centuries.