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 is another evidence of divine acceptance?
When Pilate desired Christ released, how did they remonstrate?
What did Jesus say the Spirit of truth would do?
What did the goat with the notable horn represent?
In what two great commandments is the law of God briefly summarized?
When Paul wished to preach the true God to the idolatrous Athenians, how did he describe Him?
5. What will be the dragon's attitude toward the remnant people who keep the commandments of God?

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