Weaver’s five-day run as the oldest person in the world was short, but it turns out that the oldest person in the world never holds that title for very long. Since records started being kept in the 1950s, the average tenure has been just around a year, according to the Gerontology Research Group; it has dipped to just seven months since the year 2000. Weaver’s incumbency isn’t the shortest in recent years; North Carolina’s Emma Tillman died four days after becoming the world’s oldest person in 2007.
When she died, Weaver was the seventh-oldest person in verified history. The woman who preceded her as the oldest living person in the world, Japan’s Misao Okawa, died a month after she turned 117 — older than all but four other people in verified history. (Okawa credited her longevity to lots of sleep and lots of sushi.) The current oldest living person in the world, Jeralean Talley, is one of 11 children of Georgian farmers and is the 12th-oldest verified person in history; Brooklyn resident Susannah Mushatt Jones is only 44 days younger than her.
No one in the past 15 years has gotten anywhere close to the longevity of Sarah Knauss and Jeanne Calment, however. Knauss lived to be 119 years old, while Calment, a chain-smoking Frenchwoman and our modern Methuselah, was 122 years old when she passed away in 1997. (She was the oldest living person in the world for more than nine years.) They are the only two people known to have lived past 118.
More here – FiveThirtyEightLife