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 did John declare concerning Him?
Who was the last Babylonian king?
How many of the dead will be raised?
9. In what statement to the woman at Jacob's well did Jesus intimate that the ceremonial system of worship would be abolished?
What was to he inflicted upon one of the heads of this beast?
Is there any evidence that such an image will be made?
How does Isaiah speak of the wicked at this time?

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