Which major airline underwent a significant logo redesign in 2013, changing from a 3D globe symbol (the 'tulip') to a simplified globe design featuring a blue, gold, and white color scheme?

Corporate logos in the transportation industry often evolve to reflect changing times while maintaining brand recognition. Airlines particularly have fascinating logo histories that tell stories of their corporate evolution, mergers, and modernization efforts. Test your knowledge of these iconic visual identities that have graced everything from aircraft tails to airport terminals worldwide.

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United Airlines
Delta Air Lines
American Airlines
British Airways