Comte did not propose a philosophy with religious overtones. He designed a religion in detail: a priesthood of humanity, sacraments marking the stages of a life from presentation at birth to incorporation into the Great Being some years after death, daily private devotions addressed to three chosen women representing mother, wife and daughter, and temples oriented towards Paris.
The Positivist Calendar replaced the months with thirteen periods of twenty-eight days, each named for a figure of human progress, Moses, Homer, Aristotle, Archimedes, Caesar, Saint Paul, Charlemagne, Dante, Gutenberg, Shakespeare, Descartes, Frederick, Bichat, and each day of the year assigned to a further name, so that the year itself is a commemoration list. Some accounts of the system also record a category of perpetual execration for figures Comte judged to have harmed humanity, Napoleon prominent among them.
Contemporaries found the combination hard to take. Thomas Henry Huxley called it Catholicism minus Christianity, and John Stuart Mill, who admired the earlier work, thought the later religion a warning about where a system can go. It was nevertheless built. Positivist chapels operated in London and Paris, and in Brazil the Igreja Positivista do Brasil erected a temple in Rio de Janeiro that still stands, and Brazilian positivists were influential enough at the founding of the republic that the national flag carries the positivist motto order and progress.