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.

Why was He to be named Jesus?
How is justification laid hold upon?
With what words did the chief priests and others mock Jesus while on the cross?
At what time was Daniel's second vision given?
When used with reference to prophecy, what does the word fulfil mean?
Concerning what have we been definitely informed?
For what purpose did God give His Son to the world?

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