The test will measure whether you are an informed, engaged and productive citizen of the world, and it will take place in schools and bars and hospitals and dorm-rooms and in places of worship. You will be tested on first dates, in job interviews, while watching football and while scrolling through your Twitter feed. The test will judge your ability to think about things other than celebrity marriages, whether you'll be easily persuaded by empty political rhetoric and whether you'll be able to place your life and your community in a broader context. The test will last your entire life, and it will be comprised of the millions of decisions that, when taken together, make your life yours. And everything - everything - will be on it.

Introduction to Crash Course World History - YouTube

The Agricultural Revolution: Crash Course World History #1