Which revolutionary marketing technique did the Imperial War Museum in London pioneer in 2011 that doubled visitor attendance and influenced military museums worldwide?

In 2011, a major military history museum launched an innovative marketing campaign that transformed how historical artifacts are presented to the public. This groundbreaking approach to retail promotion in military museums led to record attendance and changed industry standards for exhibition marketing. How well do you know this pivotal moment in military museum retail history?

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The 'Experience Before Artifacts' approach, where visitors engage with immersive recreations of historical environments before seeing the actual artifacts
The 'Digital Battlefield' campaign, where QR codes on displays unlocked exclusive augmented reality content showing artifacts in historical context
The 'Voices of War' initiative, featuring celebrity narrations of veteran stories paired with artifact displays in dedicated listening pods
The 'Children as Curators' program, allowing school groups to create temporary exhibits alongside professional museum staff