The oldest verified human to walk the Earth was a French woman named Jeanne Louise Clement, who nearly spent time in three centuries over her 122 years from 1875 to 1997, according to the Guinness World Records.
Most of us won’t be that lucky, but life expectancy has increased greatly in just a few decades due to modern health practices, sanitation and other factors. But what was the life expectancy of ancient humans?
The answer is nearly impossible to answer in most cases due to the lack of detailed records on populations and when they died — especially the farther back you go in time.
