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.

For whom did Christ suffer all these things?
To whom was this covenant-promise later renewed?
On which day was a double portion of manna gathered?
When was the papal head of the first beast of Revelation 13 wounded?
When was the union of church and state formed from which the Papacy grew?
In the judgment, how many angels minister before God?
What will he one of the last great signs performed by this means, to fasten men in deception?

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