What imperial law was issued in AD. 386?

Answer

"By a law of the year 386, those older changes effected by Constantine were more rigorously enforced;
and, in general, civil transactions of every kind on Sunday were strictly forbidden. " - Neander's "Church
History,- Vol. II, page 300.

In what statement of the Scripture was Abraham's obedience really implied?
When did this long period expire?
What shows that God imputed sin to Cain?
10. Because the disciples plucked a few ears of corn on the Sabbath day to satisfy hunger, what accusation did the Pharisees make against them to Christ?
What do Catholics say of the observance of Sunday by Protestants?
When are the righteous to be recompensed?
Why is it better to go to the house of mourning than to the house of feasting?

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