Why is confucianism a religious tradition despite its lack of concern for the afterlife?

Confucianism is considered religion tradition because its principles are based on ancient religious foundation in order to establish institutions and social values of Chinese society. A religion not only cares about afterlife but also it does set the parameters of a pacific way of coexisting in a society.  

the old way of life was represented by superstition, an angry god, and absolute submission to authority. the thinkers of the age of reason ushered in a new way of thinking. this new way championed the accomplishments of humankind. individuals did not have to accept despair. science and reason could bring happiness and progress. kings did not rule by divine right. they had an obligation to their subjects. europeans pondered the implications for nearly a century. americans put them into practice first.

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