Criticism of religion developed from the 17th century onwards. For example, in Asia, no one before the 19th century self-identified as a "Hindu" or other similar identities. With the existence of diverse modern 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. Some criticisms of monotheistic religions have been: Dennett and Harris have asserted that theist religions and their scriptures are not divinely inspired, but man made
The Religion of the Future Unger finds useful for the religion of the future in the doctrine of the struggle with the world, and it is this element of the doctrine that he embraces as the starting point for his vision of a religion of the future. But he finds that all of its contemporary forms, the tradition of struggling with the world is radically defective. Unger argues that a new religious revolution would be thoroughly naturalistic and would pursue the task of enhancing life now, rather than promising salvation or reward in the indefinite future. Such a revolution would likely contain elements that resemble