Junko Tabei may appear slight, almost fragile looking, but the Japanese mountaineer has a steely determination that helped her to become the first woman to reach Everest's apex. In 1975, Tabei was chosen as one of 15 in the first all-female team to take on the mountain. But only a few days into the journey, the expedition was hit by an avalanche. The team and its Sherpas were buried underneath, and Tabei was knocked unconscious for several minutes before a Sherpa dug her out. But the diminutive climber persevered, becoming the first of her group to reach the top on May 16, 1975. Just 11 days later, a 37-year-old Tibetan woman named Phantog became the second woman to make it to the top.