I want to know the answer to the following question:
When did the case of Epperson v. Arkansas take place?
All the background I'm provided with is that "The overriding fact is that Arkansas' law selects from the body of knowledge a particular segment which it proscribes for the sole reason that it is deemed to conflict with a particular religious doctrine; that is, with a particular interpretation of the Book of Genesis by a particular religious group.". Is that enough to answer the question?