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

Answer

AD. 321.

What is said of God's faithfulness in keeping His promises ?
For what are we told to pray at this time?
Through whom do we have sanctification?
21. What did this council, in its twenty-ninth canon, decree concerning the Sabbath and Christians who continued to observe it ?
With what are we to comfort one another?
Against whom do the wicked go to make war, and what is the outcome?
What do our transient afflictions do for us?

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