The Curse would have been fairly soon after the creation of Adam and Eve on Day 6 because it didn’t take long for them to sin (see When Did Adam and Eve Rebel?). We can do a basic calculation to arrive at the date of creation and Adam’s creation. The Curse must have been close to the same time. So, let’s calculate the date of creation.
Adam was created on Day 6, so there were 5 days before him. If we add up the dates from Adam to Abraham, we get about 2,000 years, using the Masoretic Hebrew text (which is the standard Hebrew text that most English translations are based on) of Genesis 5 and 11. 1 Whether Christian or secular, most scholars would agree that Abraham lived about 2,000 B.C. (4,000 years ago).
So, a simple calculation is:
+ ~2000 years
+ ~4000 years
At this point, the first five days are negligible. Quite a few people have done this calculation using the Masoretic text and, with careful attention to the biblical details, arrived at the same time frame of about 6,000 years, or about 4,000 B.C. Two of the most popular, and perhaps the best, are a recent work by Dr. Floyd Jones and a much earlier book by Archbishop James Ussher (1581–1656):