Criticism of religion

Criticism of religion is criticism of the ideas, the truth, or the practice of religion, including its political and social implications.

Historical records of criticism of religion goes back to at least 5th century BCE, in ancient Greece, with Diagoras "the Atheist" of Melos. In ancient Rome, an early known example is Lucretius' De Rerum Natura from the 1st century BCE. Criticism of religion is complicated by the fact that there exist multiple definitions and concepts of religion in different cultures and languages. With the existence of diverse categories of religion such as monotheism, polytheism, pantheism, nontheism and diverse specific religions such as Christianity, Judaism, Islam, Taoism, Buddhism, and many others; it is not always clear to whom the criticisms are aimed at or to what extent they are applicable to other religions.

Every exclusive religion on Earth that promotes exclusive truth claims necessarily denigrates the truth claims of other religions. Critics of religion in general often regard religion as outdated, harmful to the individual, harmful to society, an impediment to the progress of science, a source of immoral acts or customs, and a political tool for social control.

Religion (from O.Fr. religion "religious community", from L. religionem (nom. religio) "respect for what is sacred, reverence for the gods", "obligation, the bond between man and the gods") is derived from the Latin religiō.

In the ancient and medieval world, the etymological Latin root religio which is the source of the modern word "religion", was understood as an individual virtue of worship and never referring to doctrine, practice, or actual source of knowledge. The modern concept of "religion" as an abstraction which entails distinct sets of beliefs or doctrines, is a recent invention in the English language since such usage began with texts from the 17th century due to the splitting of Christendom during the Protestant Reformation and globalization in the age of exploration. During this time period, contact with numerous foreign and indigenous cultures with non-European languages, that did not have equivalent concepts or words for religion, became more common. It was in the 17th century that the concept of "religion" received its modern shape despite the fact that ancient texts like the Bible, the Quran, and other ancient sacred texts did not have a concept of religion in the original languages and neither did the people or the cultures in which these sacred texts were written. For example, the Greek word threskeia, which was used by Greek writers such as Herodotus and Josephus and is found in texts like the New Testament, is sometimes translated as "religion" today, however, the term was understood as "worship" in a generic sense well into the medieval period. In the Quran, the Arabic word din is often translated as "religion" in modern translations, but up to the mid-1600s translators expressed din as "law". Even in the 1st century AD, Josephus had used the Greek term ioudaismos, which some translate as "Judaism" today, even though he used it as an ethnic term, not one linked to modern abstract concepts of religion as a set of beliefs. It was in the 19th century that the terms "Buddhism", "Hinduism", "Taoism", and "Confucianism" first emerged. Throughout its long history, Japan had no concept of "religion" since there was no corresponding Japanese word, nor anything close to its meaning, but when American warships appeared off the coast of Japan in 1853 and forced the Japanese government to sign treaties demanding, among other things, freedom of religion, the country had to contend with this Western idea.

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