The Gram Code of African Adam by Catherine Acholonu (with Ajay Prabhakar) argues that Africa, specifically Igboland in Nigeria, is the cradle of civilization, challenging mainstream history by presenting research on ancient African stone inscriptions (Garammante Codes) that reveal Africa's Pre-Deluge past. The book deciphers these lost scripts, suggesting they are foundational to proto-cuneiform and hieroglyphics, proving that Homo erectus left Africa with language and culture, making Black Africans the oldest human ancestors and placing the Garden of Eden in West Africa. It's the first of a trilogy exploring Africa's deep history through linguistic, archaeological, and cultural analysis.