How early was this sacrificial system known?

Answer

"By faith Abel offered unto God a more excellent sacrifice than Cain, by which he obtained witness that he
was righteous, God testifying of his gifts." Heb. 11: 4. See Gen. 4: 3-5; 8: 20.

In what event was this prophecy fulfilled?
With what, therefore, is the faith of Jesus joined?
What change is wrought in conversion, or the new birth?
What will sound doctrine enable the faithful teacher to do?
What effect did this dream have upon Daniel?
What did the first Sunday law enacted in America, that of Virginia, in 1610, require?
7. With what is witchcraft classed by Paul, and what does he say to those who are guilty of such things?

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