Abstract
In the modern era of the West, various atheistic approaches have emerged, each reflecting the philosophical perspectives of its time. This article aims to outline the evolution of these diverse approaches and demonstrate the challenges each has posed to theism. Typically, these challenges have allowed theism to refine its perspectives and rebuild its beliefs more logically. The article will then illustrate how theism has developed along this path. I identify this process as a nine-stage journey, each of which will be explained in this article. Ultimately, it will be shown how each of these challenges has become a chapter in the philosophy of religion, and the areas in which philosophical discussions about religion have been shaped will be explored. As a result, the article will present the 13 key themes of the philosophy of religion that have emerged following these challenges.