Jeanne Louise Calment, who was born in 1875 in Arles, France, is the oldest confirmed person ever at 122 years. She lived through immense change, including two world wars and the digital revolution, while maintaining a healthy Mediterranean diet, an active lifestyle, and a positive attitude. Her well-documented long life has fascinated scientists and challenged conventional wisdom on aging. Despite controversial claims about her identity, the consensus supports her record age. Her legacy continues to influence longevity research.