This article lists the expanding evidence being found. It is from an article from the Atlanta Black Star at: https://
"The Olmec civilization was the first significant civilization in Mesoamerica and deemed “Mother Culture of Mexico” by some historians. This civilization dominated by Africans is best known for the colossal carved heads in Central Mexico that serve as even more evidence that Africans sailed to the New World before Columbus. The heads are clearly crafted in the likeness of Africans. The same civilization that created these giant heads was also responsible for introducing written language, arts, sophisticated astronomy and mathematics to Mesoamerican civilization, ancient African historian Professor Van Sertima explained."
"According to Paul Alfred Barton, the author of “A History of the African-Olmecs: Black Civilizations of America from Prehistoric Times to the Present Era,” ancient kingdoms in West Africa have a long history of trade by sail, which made it all the more likely that they eventually expanded their trade to the Americas. While the Sahara is a dry desert today, its past as a lake-filled, wet and fertile place has been well-documented. African ships often crossed these large lakes to get from place to place and traded with other African civilizations along the way. After expanding their trade to the Americas, they certainly made their mark as things like African native cotton were soon being discovered all across North America."
"The discovery of American narcotics in Egyptian mummies has left some historians amazed. Recently, archaeologists discovered the presence of narcotics only known to be derived from American plants in ancient Egyptian mummies. These substances included South American cocaine from Erythroxylon and nicotine from Nicotiana tabacum. German toxicologist Svetla Balabanova reported the findings, which suggest that such compounds made their way to Africa through trans-Atlantic trade that would predate Columbus’ arrival by thousands of years."
Above are only 3 of the 10 facts posted in the Atlantic Black Star Article online at https://