Describe features of the world's physical and natural environment, and explain how the environment has affected and been affected by historical developments. Explain large-scale and long-term historical developments of regional, interregional, and global scope. Analyze ways in which human groups have come into contact and interacted with one another, including systems of communication, migration, commercial exchange, conquest, and cultural diffusion. Assess the significance of key turning points in world history.Describe the development and explain the significance of distinctive forms of political, social, and economic organization.Identify major discoveries, inventions, and scientific achievements, and assess their impact on society.Identify achievements in art, architecture, literature, and philosophy, and assess their impact on society.Compare the world we live in today with past eras such as the lower paleolithic, upper paleolithic, neolithic, agrarian, and industrial ages.Explain ideals, practices, and historical developments of major belief systems. Identify challenges that humans have faced in the ecological, economic, political, and other spheres of life, and explain how they have responded to those challenges. Reflect upon choices humans have made in the past and consider how choices made today may affect the future.