Shigechiyo Izumi

Shigechiyo Izumi was a native of Japan famous for being the oldest living person and oldest living man in the world. Allegedly born June 29, 1865 and living to February 21, 1986, he would have attained an age of 120, years longer than any other known male, and the second-longest documented lifespan in the world, less only than that of Frenchwoman Jeanne Calment.

However, subsequent research has cast doubt on his claim, as what was previously believed to be his birth certificate may actually have been that of his older brother, who died young and whose name might have been reused as per the practice of necronomy. If so, this would mean he was "only" 105 when he died.