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.

What cheering message has Christ sent to His people touching His resurrection?
Were any efforts to he made to reunite the divided empire of Rome?
What is to take place in the days of these kingdoms?
What question was asked in the hearing of the prophet?
How was the ceremonial law made known to Israel?
How was the \"devotion\", of the \"faithful\" disturbed?
What will the ransomed of the Lord then do?

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