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 prophecy foretold of the disposal of Christ's garments at the crucifixion?
What three definite witnesses of acceptance are mentioned by John?
When Pilate heard that Christ was from Galilee, what did he do?
22. In what announcement in the New Testament is the establishment of the kingdom of God made known?
Until what time were the saints to he persecuted under the Roman power?
By what are we to try them?
What experience followed this trust in Jesus?

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