The supreme court established that government aid to religious schools would be accepted as constitutional if it had a secular purpose, its effect was to neither advance nor inhibit religion, and it did not entangle government and religious institutions in each other’s affairs. this became known as the test.

This became known as the Lemon test.

Explanation:

The Lemon Test was named after Alton Lemon, it has stood as guide for lower courts since 1971. It details legislation regarding religion as the text already describes. Its factor is, among others, connection between government and religious authority. It is also used to determine if a law violates the First Amendment to the United States Constitution.

think its caste system

explanation:

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.