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 true of everyone who believes in Jesus?
How early were the Scriptures taught to Timothy?
Who does God say shall die?
Because evil is not punished immediately, what presumptuous course do many pursue?
From what time was Christ, the Word, associated with God, the Father?
Who is responsible for the present state Sunday laws of the United States?
What is the condition of one who lacks these graces?

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