1. Sacrificing his life to save a stranger's
Robert Cook, a 22-year-old skydiving instructor, was on a plane with 21-year-old Kimberley Dear. She was about to make her first ever skydive, and he was her instructor.
But soon after the plane had taken off, the engine failed. The airplane started plummeting towards the ground at a rapid speed.
Somaly Mam was born in either 1970 or 1971 in Cambodia. Nobody knows for certain, since there are no records of her birth. She and her family lived in extreme poverty. When she was 12 years old, her parents abandoned her. She survived alone until a man she had never met before found her. He promised her he'd find her family if she went with him, so she did. He took her in and she became his slave. He instructed her to call him "grandfather".