Worksheets - World war one. World War I. World War I Centenary | Continuations and Beginnings. Honors Modern World Resources - 13.1 - Causes of World War I. [ Blank Map of European Alliance Systems] [ Austria Declares War - Reading & Questions] [ Causes of WWI DBQ Packet] [ Guided Questions - Use For Note Taking] Resources The Three Cousins From left: Czar Nicholas II of Russia, King George V of England, and Kaiser Wilhelm II of Germany. Notice the resemblance of Nicholas and George. Their moms were sisters. The Three Cousins Map of the Triple Alliance and Triple Entente at the outbreak of WWI. A Day Which Changed the World June, 28th 1914. A Day Which Changed the World Assassination of Archduke Franz Ferdinand Assassination of Archduke Franz Ferdinand.