Amelia Earhart was a living legend -- this high-flying aviation pioneer garnered international acclaim and accolades for her daring flights across the planet. On July 2nd, 1937, midway through a flight around the world, Earhart's plane disappeared. Although she was declared legally dead on January 5th, 1939, theories about the true story of her disappearance linger in the public consciousness today. So what really happened to Amelia Earhart? Why do some people believe she didn't actually die on that fateful flight?