Constructing pyramids was a highly specialized and complicated task that took the ancient Egyptians a lot of time to master. In ancient Egypt, there are signs of progression from the original stepped pyramid of Djoser to the more sophisticated pyramids that now stand at Giza. According to historians, it would be impossible for any group of people to have built those same complex pyramids without going through the same progression. Professor Everett Borders noted the presence of completed pyramids in La Venta in Mexico but the unusual absence of any earlier forms of the pyramids. According to Borders, it’s a sign that Africans, having already mastered the construction of pyramids in Egypt, sailed over to the New World and constructed these dual-purpose tombs and temples in the Americas.