The cover-up and alleged suppression of archaeological evidence began in late 1881 when John Wesley Powell, the geologist famous for exploring the Grand Canyon, appointed However, John Wesley Powell, the director of the Bureau of Ethnology, a very sympathetic man toward the American Indians, had lived with the peaceful Winnebago Indians of Wisconsin for many years as a youth and felt that American Indians were unfairly thought of as primitive and savage.
The Smithsonian began to promote the idea that Native Americans, at that time being exterminated in the Indian wars, were descended from advanced civilizations and were worthy of respect and protection.
To those who investigate allegations of archaeological cover-ups, there are disturbing indications that the most important archaeological institute in the United States, the Smithsonian Institution, an independent federal agency, has been actively suppressing some of the most interesting and important archaeological discoveries made in the Americas.
has been long accused of keeping artifacts and ancient books in their vast cellars, without allowing the outside world access to them.
In fact, the habit of flattening the skull of an infant and forcing it to grow in an elongated shape was a practice used by ancient Peruvians, the Mayas, and the Flathead Indians of Montana.Isolationism holds that most civilizations are isolated from each other and that there has been very little contact between them, especially those that are separated by bodies of water.In this intellectual war that started in the 1880s, it was held that even contact between the civilizations of the Ohio and Mississippi Valleys was rare, and certainly these civilizations did not have any contact with such advanced cultures as the Mayas, Toltecs, or Aztecs in Mexico and Central America.Sanderson seemed convinced that the Smithsonian Institution had received the bizarre relics, but wondered why they would not release the data.In 1944 an accidental discovery of an even more controversial nature was made by Waldemar Julsrud at Acambaro, Mexico.