Instructional Video11:09
Crash Course

Water and Classical Civilizations: Crash Course World History 222

For Students 9th - 12th Standards
Humans cannot survive without water, and neither can civilizations. A brief history of ancient civilizations and their dependence on—and management of—water demonstrates how states either flourish or flail based on the availability of...
Instructional Video
Crash Course

Crash Course History of Science #5: The Americas and Time Keeping

For Students 9th - 10th
How did ancient civilizations in America develop their culture and knowledge base without any contact with the peoples of Africa, Asia, or Europe? This is a story about the planet Venus, breathtaking pyramids, and intricate calendars....