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 God's love able to do for His children?
In order to baptize the eunuch, where did Philip take him?
How did His questions and answers impress those who heard Him?
Who was represented by \"the great horn,\" and what followed when it was broken?
What prophetic view of the judgment was given Daniel?
What name is given to the third state of the church?
15. Because Solomon asked for wisdom rather than for long life and riches, what besides wisdom did God give him?

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