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Battle of Flers–Courcelette Mark I tanks fill with petrol on the day tanks were first used in war, Learn More 1917 Russia proclaimed a republic by Alexander Kerensky's Provisional government 1921 Pope Benedict XV publishes encyclical Alcohol Paraclitus 1921 WBZAM in Boston MA begins radio transmissions26 Views 2 Min Read tanya Add Comment In India, Engineer's day is observed on the occasion of sir Mokshagundam Visvesvaraya's birthday on 15th September He was the pioneer engineer of India who has paid a big contribution to August 14 August 15 September 2 September 3 In most countries around the world, depending on where you are, one of these four days is recognized as VJ Day, or Victory over Japan Day In Australia, this celebration is called VP Day, or Victory in the Pacific Day September 15 Is Celebrated As National Engineers Day 15 september is celebrated internationally as