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 was the result of Christ's working miracles at His first passover?
By what means may the mother bind the hearts of the loved ones at home together?
Were any efforts to he made to reunite the divided empire of Rome?
By what are all men to be finally judged?
In what was shown the first tangible evidence of this \"falling away\" from the truth of God?
What description does the prophet Jeremiah give of the earth during this time?
How great reward has God promised those that love Him?

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