"The Great Journey" refers to the migration of the Beringian land bridge inhabitants, who traveled from Asia to North America around 15,000 years ago. This movement was driven by the search for food and better living conditions, as these early humans followed herds of mammoths and other animals across the land bridge that once connected the two continents. As they settled in new territories, these early peoples adapted to diverse environments, leading to the development of various cultures and societies. This migration played a crucial role in shaping the history of the Americas and the eventual rise of indigenous civilizations.