It's a fact: People are living longer and healthier lives. As such, many post 50s are forgoing the knitting and rocking chairs long associated with "old age" to do some rather amazing things.

Need proof? Here are nine post 50s who hold some pretty remarkable records as the oldest people to do [insert amazing feat here]. Even when you subtract their age from the equation, these men and women are extraordinary.

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  • Jeanne Socrates, The Oldest Woman To Sail Around The World

    A tip of the hat is due to <a href="" target="_blank">Jeanne Socrates</a>; the 70-year-old retired teacher and grandmother took the eight-month-long trip to raise money for Marie Curie Cancer Care, "a British program that provides free home nursing for terminally ill cancer patients," the Canadian Press reported.

  • Christopher Plummer, The Oldest Person To Win An Oscar

    "You're only two years older than me, darling," Christopher Plummer said as he gazed up at his Oscar at the 84th annual awards ceremony in 2012. "Where have you been all my life?" Waiting for the right moment, it would appear. Plummer won the best supporting actor award for his role as a widower who comes out of the closet in the movie, "Beginners," and became the <a href="" target="_blank">oldest person to win an Oscar</a> at 82 years old.

  • Yuichiro Miura, The Oldest Man To Climb Mount Everest

    At 80, <a href="" target="_blank">Yuichiro Miura</a>, "a Japanese former extreme skier, conquered the mountain on May 23, [2013] despite undergoing heart surgery in January for an irregular heartbeat, or arrhythmia, his fourth heart operation since 2007," according to the Associated Press.

  • Daphne Selfe, The Oldest Supermodel

    <a href="" target="_blank">Selfe, 84, has been working the runways since the 1950s</a>. "I wasn't anything very special -– I was a big, horsey girl," said Selfe in an interview with The Independent, "but I managed to earn my living modelling. I only became a top model after I was 70."

  • Fauja Singh, The Oldest Man To Run A Marathon

    The 102 year old hung up his sneakers when he was 101. <a href="" target="_blank">Fauja Singh's last competitive marathon</a> was in Hong Kong, where he finished the 10km race in 1 hour, 32 minutes and 28 seconds, according to Ireland's The Herald. <a href="" target="_blank">Singh became the oldest man to complete a marathon when he finished the Toronto marathon in 2011</a>, though the feat wasn't recognized by the Guinness World Records because he only has a passport and not a birth certificate, the BBC reported. The former farmer started running when he was 89 after losing his wife and fifth son.

  • Tamae Watanabe, The Oldest Woman To Climb Mount Everest

    Talk about a double whammy -- not only is <a href="" target="_blank">Tamae Watanabe the oldest woman to climb Mount Everest</a> on May 25, 2012 at 73 years old... she broke her own record! On May 12, 2002, Watanabe -- then 63 -- climbed the storied peak, swiping the the title of world's oldest female Everest summiteer from Poland's <a href="" target="_blank">Anna Czerwinska, who had bested Everest at 50</a>.

  • Pinetop Perkins, Oldest Person To Win A Grammy

    In 2011 blues musician <a href="" target="_blank">Pinetop Perkins became the oldest person to win a Grammy</a> -- the best traditional blues album Grammy to be exact -- for his record “Joined at the Hip: Pinetop Perkins & Willie 'Big Eyes' Smith.” Perkins topped George Burns' win at 95 for his spoken word album, "Gracie: A Love Story." Though Perkins passed away a month after his win, his musical legacy lives on.

  • Roger Allsopp, The Oldest Man To Cross The English Channel

    <a href="" target="_blank">Roger Allsopp</a>, a retired British breast cancer surgeon, is the oldest person to swim across the English Channel. He crossed from Shakespeare Beach in Dover, UK and made it to the bay of Calais, France on August 30, 2011 when he was 70 years old. Swimming non-stop, the crossing took a little under 18 hours total.

  • Jeanne Stawiecki, The Oldest Woman To Climb The 7 Summits

    Seven in 2007 is not only the name of <a href="" target="_blank">Jeanne Stawieck</a>i's website, it's what the then 56 year old did in 2007, when she became the oldest woman to conquer <a href="" target="_blank">the highest mountains on each continent</a> (at the time only 200 people had done that, 50 of which were women). Not content with that distinction, Stawiecki also went down in record books at 56 for having "the fastest aggregate time for a woman to complete marathons on all seven continents."