The concept of public sphere is a highly controversial term in several disciplines. Dating from ancient Greece, the concept gained its modern definition in the early 18th century. The sense of public sphere was gender and property based and later changed completely through modernity. The concept emerged in a dereligionized area where any topics were discussable after religious and traditional beliefs and values were left in the private sphere.
Following the Industrial Revolution, the efforts to understand life and world led to new opinions, including individualism, rationalism, secularism, nation-state and citizenship. The common acceptance of these notions is definable by their rejection of religions. This study examines the unwanted association of religion with some parameters for the modern public sphere that intends to constitute its own beliefs since religion has aimed to orient itself to such changes and obtain a public characteristic, which is today more apparent than ever before.
Key words: Modernity, Public Sphere, Private Sphere, Citizenship, Religion