Who discovered America?: the untold history of the peopling of the Americas

Timeline of world civilizations --

Across oceans before Columbus. Prologue: Life at sea ; A land bridge too far ; Along the Silk Road ; Plants between continents ; European seafaring, 100,000 B.C. ; Mastery of the oceans before Columbus --

China in the Americas. The genetic evidence ; In search of lost civilizations ; The Olmec : the foundation culture of Central America ; Pyramids in Mexico and Central America ; Pyramid builders of South America --

China's explorations to the north. Kublai Khan's lost fleets ; The 1418 Chinese map of the world ; North Carolina and the Virginias ; The Eastern Seaboard ; Nova Cataia : the island of seven cities ; The Pacific Coast of North America ; Stone Age sailors : the "Windover Bog" people of Florida --

Conclusion: Who discovered America?