Alice Beck (University of Wisconsin-Milwaukee, USA) Kehoe 
America Before the European Invasions [PDF ebook] 

Beginning with the immigrants from Asia, through inventions of agriculture, cities and kingdoms, American First Nations are integral to the history of the United States. They explored the continent, pioneered its waterways and mountain passes, cleared forests, irrigated deserts, and ranched its great plains.

Invading Europeans justifies their conquests by denying the evidence of American Indian civilisations. Using her familiarity with the archaeological remains and remnants, Alice Kehoe builds a fascinating prehistory, highlighting the research puzzles along the way.

This book presents an enthralling look at the depth and diversity of American history — before the Europeans and the deadly epidemics they brought with them decimated whole nations.