Why Did World War 1 Actually Start?

On 28 June 1914, a driver in Sarajevo took one wrong turn, and five weeks later Europe's great powers were at war. But almost nobody in 1914 was planning a world war. So how did one assassination drag in Austria-Hungary, Serbia, Russia, Germany, France, Belgium and Britain? Here is the whole chain: rival empires and royal cousins, alliances that worked like dominoes, a railway-timetable war plan that ran through neutral Belgium, Germany's "blank cheque", an ultimatum written to be rejected, and five decisions made in five weeks. Plus: who historians blame today, and why the famous sandwich story is a myth. Chapters 0:00 One wrong turn 0:45 Europe's six great powers 1:53 The alliances 2:47 Dreadnoughts and the Schlieffen Plan 3:43 The Balkan powder keg 4:39 Sarajevo, 28 June 1914 5:49 The blank cheque and the ultimatum 6:49 Mobilisation 7:34 Belgium and Britain 8:27 So who was to blame? 9:31 What happened to Princip Sources The Open University (OpenLearn) – The July Crisis: chronology Western Front Association – The July crisis, 1914: what went wrong, 19 steps to disaster Britannica – World War I; Assassination of Archduke Franz Ferdinand; Black Hand Wikipedia – Assassination of Archduke Franz Ferdinand; July Crisis; Treaty of London (1839); Schlieffen Plan NPR (2014) – How bad directions and a sandwich started World War I (on the origin of the sandwich myth); Russell Phillips – Gavrilo Princip and the mythical sandwich Christopher Clark, The Sleepwalkers (2012); Fritz Fischer, Germany's Aims in the First World War (1961) Images: public-domain or CC0 works from Wikimedia Commons – La Domenica del Corriere (A. Beltrame) and Le Petit Journal illustrations of the assassination, July 1914; photos of Franz Ferdinand and Sophie in Sarajevo, 28 June 1914 (CC0); an arrest in Sarajevo, 1914; Sarajevo c. 1914; Latin Bridge area, 1930s; Gavrilo Princip in prison; Ferdinand Schmutzer's portrait of Franz Ferdinand; Wenzl Weis, Franz Joseph I (1910); Kaiser Wilhelm II (1902); George V and Nicholas II (1913); HMS Dreadnought (1906, IWM); Alfred von Schlieffen (1906); Dragutin Dimitrijević "Apis"; crowds in Berlin, 1914; the Somme, 1916 (IWM). Maps drawn by Compass & Crown. 1914 borders (approximate) from historical-basemaps by André Ourednik (GPL-3.0, github.com/aourednik/historical-basemaps); coastlines and Bosnia outline from Natural Earth (public domain). Narration uses an AI (synthetic) voice. No AI-generated images in this video. Music: "Hidden Agenda" and "Long Note Two" by Kevin MacLeod (incompetech.com), licensed under Creative Commons: By Attribution 4.0, http://creativecommons.org/licenses/by/4.0/ #history #ww1 #worldwar1