Columbus Discovers a New Continent Christopher Columbus lands in the Bahamas, mistakenly believing he has reached India and names the natives "Indians." This new land, later known as America, was unknown to Europeans and raises questions about how its inhabitants arrived. The continent's isolation between two oceans adds to this mystery.
Understanding Human Migration Through Climate Change In the 18th century, scientific advancements revealed that Earth's environment is constantly changing due to evolution and climate shifts. Humans have migrated throughout history in response to these changes; for instance, during an Ice Age when glaciers expanded or receded. These climatic fluctuations explain why different human races developed distinct characteristics across vast distances.
The Epic Journey of Early Humans Into North America Over 10,000 years ago during another Ice Age phase with extreme cold conditions led humans northward into Siberia where they hunted large mammals like mammoths. As temperatures warmed again around 12 thousand years ago allowing them access through Beringia—a now submerged land bridge—humans began migrating into North America from Asia while adapting their survival strategies amidst harsh environments.
From Hunters-Gatherers To Settled Farmers 'As global warming transformed ecosystems approximately ten thousand years ago after crossing over into Alaska from Siberia made it impossible for early settlers' return home but opened pathways southwards towards abundant resources leading them all over North America's diverse landscapes by hunting smaller game alongside gathering plants until farming emerged thousands of years later marking significant population growth before European contact disrupted their way of life.'