CrashCourse

CrashCourse is an educational YouTube channel created by John and Hank Green, offering high-quality, free educational videos on a wide range of subjects including World History, Biology, Chemistry, Literature, Economics, Psychology, Sociology, Astronomy, US History, Anatomy & Physiology, Film, and AI. Videos are typically 10-15 minutes long, fast-paced, and engaging, designed to supplement high school and college-level courses.