The 7-day week of creation reveals that God has a plan for mankind. The 6 days reveal that God has given man a limited time to do his works—6 is the number of man. And the seventh day reveals that God has set a time in which man will be made to rest from his works and God will complete His purpose for mankind (7 represents completion). However, by itself, the 7-day week does not reveal that the plan is exactly 7,000 years long, which some people believe to be the case. History is proving that idea is wrong. An article examining this understanding and that explains why this website is called century72 has been posted, Read: 7-Day Week Predicts 7,000 years?