What were the main similarities and differences between Africa and the Americas by the early centuries c.e.?

By the early centuries c.e., both Africa and the Americas exhibited rich cultural diversity, with complex societies, trade networks, and distinct religious practices. However, a key difference lay in their technological development and societal structures; Africa had established urban centers and extensive trade routes, particularly with the Mediterranean and the Middle East, while many American civilizations, such as the Maya and the Andes cultures, were still developing their political systems and trade networks independently. Additionally, Africa had a longer history of interaction with Eurasian cultures, whereas the Americas were more isolated from these influences during this period.