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It explains Beringia and likely routes into the continent, highlights evidence from archaeological sites such as Clovis, and describes shifts in food sources and early agriculture. 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Early America  \n2. The Colonial Period  \n3. The Road to Independence  \n4. The Formation of a National Government  \n5. Westward Expansion and Regional Differences  \n6. Sectional Conflict  \n7. The Civil War and Reconstruction  \n8. Growth and Transformation  \n9. Discontent and Reform  \n10.War, Prosperity, and Depression  \n11.The New Deal and World War II  \n12.Postwar America  \n13.Decades of Change: 1960-1980  \n14.The New Conservatism and a New World Order  \n15.Bridge to the 21st Century  \nThis series is © 2011 Student Handouts. For any questions, please visit our website:  \n[www.studenthandouts.com](www.studenthandouts.com).  \nEARLY AMERICA:  \nUnited States History Workbook \\#1  \nTable of Contents:  \n1. The First Americans  \n2. Mound Builders and Pueblos  \n3. Native-American Cultures  \n4. The First Europeans  \n5. Early Settlements  \n6. Jamestown  \n7. Massachusetts  \n8. New Netherland and Maryland  \n9. Colonial-Indian Relations  \n10. Second Generation of British Colonies  \n11. Settlers, Slaves, and Servants  \n12. The Enduring Mystery of the Anasazi  \nUnited States History Workbook Series-Answer Keys  \n[http://www.studenthandouts.com/01-Web-Pages/United-States](http://www.studenthandouts.com/01-Web-Pages/United-States)History-Workbooks-Answer-Keys/00-Answer-Keys. htm  \nPage 2  \nStudent Handouts (Order \\#3780974)  \nEarly America – United States History Workbook \\#1 of 15  \n1. The First Americans  \nAt the height of the Ice Age, between 34,000 and 30,000 B.C., much of the world's water was locked up in vast continental ice sheets. As a result, the Bering Sea was hundreds of meters below its current level, and a land bridge, known as Beringia, emerged between Asia and North America. At its peak, Beringia is thought to have been some 1,500 kilometers wide. A moist and treeless tundra, it was covered with grasses and plant life, attracting the large animals that early humans hunted for their survival.  \nThe first people to reach North America almost certainly did so without knowing they had crossed into a new continent. They would have been following game, as their ancestors had for thousands of years, along the Siberian coast and then across the land bridge.  \nOnce in Alaska, it would take these first North Americans thousands of years more to work their way through the openingsin great glaciers south to what is now the United States. Evidence of early life in North America continues to be found. Little of it, however, can be reliably dated before 12,000 B.C.; a recent discovery of a hunting lookout in northern Alaska, for example, may date from almost that time. So too may the finely crafted spear points and items found near Clovis, New Mexico.  \nSimilar artifacts have been found at sites throughout North and South America, indicating that life was probably already well established in much of the Western Hemisphere by some time prior to 10,000 B.C.  \nAround that time the mammoth began to die out and the bison took its place as a principal source of food and hides for these early North Americans. Over time, as more and more species of large game vanished —whether from overhunting or natural causes— plants, berries, and seeds became an increasingly important part of the early American diet. Gradually, foraging and the first attempts at primitive agriculture appeared. Native Americans in what is now central Mexico led the way, cultivating corn, squash, and beans, perhaps as early as 8,000 B.C. Slowly, this knowledge spread northward.  \nBy 3,000 B.C. , a primitive type of corn was being grown in the river valleys of New Mexico and Arizona. Then the first signs of irr","cbCaiaKfgiBWDRyi","https://ap.wps.com/l/cbCaiaKfgiBWDRyi","pdf",686491,24,"English","# The First Americans\n# Mound Builders and Pueblos","[{\"question\":\"What land bridge emerged between Asia and North America during the last Ice Age?\",\"answer\":\"Beringia emerged between Asia and North America when sea levels dropped during the Ice Age.\"},{\"question\":\"Why did the first people cross into North America from Asia?\",\"answer\":\"They likely followed game animals, moving along the Siberian coast and across the land bridge in search of survival resources.\"},{\"question\":\"What food and lifestyle changes occurred as large animals declined?\",\"answer\":\"As mammoths died out and bison became more central, plants, berries, and seeds grew more important; foraging continued and primitive agriculture began to appear.\"}]","Early America - United States History Workbook - Answer Keys | PDF",1792384000]