What was the date of Constantine's famous Sunday law?

Answer

AD. 321.

14. What beings of a higher order than man desire to study the truths revealed in the gospel of Christ?
What is necessary in order that the preaching of the gospel may be profitable?
What relationship to God is established by faith?
Into what experience are those baptized who are baptized into Christ?
What is proved by any attempt to be justified by the law?
What is predicted of the moral condition of the world in the last days?
What did Christ learn through suffering?

Questions & Answers are from the book Bible Readings for the Home Circle