Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/humanities/world-history/euro-hist/world-war-i-tutorial/v/assassination-of-franz-ferdinand-by-gavrilo-princip Gavrilo Princip assassinated Australian Archduke Franz Ferdinand, setting off World War I. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/humanities/world-history/euro-hist/world-war-i-tutorial/v/the-great-war-beginsutm_source=YT&utm_medium=Desc&utm_campaign=worldhistory Missed the previous lesson https://www.khanacademy.org/humanities/world-history/euro-hist/world-war-i-tutorial/v/language-and-religion-of-the-former-yugoslaviautm_source=YT&utm_medium=Desc&utm_campaign=worldhistory World history on Khan Academy: From the earliest civilizations to the modern world, geography, religion, trade, and politics have bound peoples and nations together — and torn them apart. Take a journey through time and space and discover the fascinating history behind the complex world we inhabit today. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s World History channel: https://www.youtube.com/channel/UC6KRvvmvkCchFMo2EJ-3Argsub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_centeradd_user=khanacademy