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One hundred years ago, between the world wars, the world became mobile: cities like Berlin grew rapidly, cars clogged the streets, and oceans were crossed in record time. And people conquered the skies: transatlantic crossings were celebrated worldwide.

One hundred years ago, the world seemed to shrink thanks to new possibilities for mobility: people took to the skies. For the first time, a zeppelin floated over Berlin, and long-distance air travel became affordable and commonplace.