I want to know the answer to the following question:
What was the name of the material that was produced from this groups and the opinions of others?
All the background I'm provided with is that "Potter's book and the Manifesto became the cornerstones of modern humanism, the latter declaring a new religion by saying, "any religion that can hope to be a synthesising and dynamic force for today must be shaped for the needs of this age.". Is that enough to answer the question?
Answer: no