Criticism of religion is criticism of the validity, concept, or ideas of religion.
Criticism of religion dates back at least to the 5th century BC in ancient Greece, especially by the Sophistic philosopher Diagoras of Milos. An example in ancient Rome was the poem of the Roman philosopher and poet Lucretius "On the Nature of Things" known from the first century BC. Every religious singularity in the world (as well as every singular cosmological view of the world) reinforces true singular or exclusive claims to a particular religion; This will inevitably distort the real claims of other religions. Thus some religious criticism becomes criticism of one or more aspects of a particular religious tradition. Critics of religion may generally describe religion as one or more of the following: it is old and abandoned, harmful to the individual, harmful to society, an obstacle to the progress of science, a source of immoral actions and habits, and a political tool for social control.