Our ancestors were not unlearned nitwits. On the contrary, secular historical research shows that many of our ancestors were highly intelligent. The ancient Egyptians, more than 4,000 years ago, built great pyramid-shaped “tombs” in which to bury their dead kings. The Great Pyramid, stood nearly 500 feet high (almost as tall as the Washington Monument—the tallest stone structure in the world). It was built on a 13-acre base made level to within less than 1″. 900 million cubic feet of granite blocks (10-20 tons each) were used in its construction. The space between the stones is smaller than a human hair, exact to the thousandth of an inch. Today’s technology can’t achieve that. It can only move huge stones (10-20 tons each) to within 1 or 2 inches of each other.
The ancient Mayans are another example of our intelligent forefathers. More than one thousand years before astronomers found that the length of a year was precisely 365.2422 days, the Mayans (without computers or modern measuring devices) calculated it to be 365.2420 days long. They also figured the orbit of Venus to be 584 days, when current science shows it at 583.92 days. Without question, the Mayans were an intelligent people.
Also, biblical research confirms that our ancestors were very intelligent as well. If we look at the first six chapters of Genesis, we find that Adam was created with the ability to speak a language (naming all of the animals God brought to him the very day of his creation (2:19); Jubal, one of Cain’s descendants, “was the father of all those who play the harp and flute” (4:21); Tubal-Cain, Jubal’s half-brother, formed tools out of bronze and iron (4:22); and Noah built a huge ark. Furthermore, in the book of Job (one of the oldest book of the Old Testament) chapter 28 indicates that our ancestors were capable of tunneling through rock, and mining precious metals from deep within the Earth. All of these things were accomplished without modern-day technology.
In the beginning God created our ancestors perfect with highly intelligent mental capabilities (Genesis 1:27, 31).
In His service,