Sakari Momoi: Japanese educator and verified supercentenarian

Biography and professional life

Born in 1903, Momoi's lifetime spanned major periods of modern Japanese history, including the Taishō, Shōwa and Heisei eras. His career was centered on secondary education where he taught chemistry and oversaw technical and general high schools. He served as rector of Hanawa Fukushima Prefectural Technical High School from 1948 to 1951 and later led Saitama Prefectural Yono High School from 1953 to 1959. Colleagues and records indicate he remained engaged with educational matters after retirement, a common habit among long-lived educators.

Longevity, verification and public recognition

Momoi became the oldest living Japanese man after the death of Jokichi Ikarashi on 23 July 2013 and later was recognized as the world's oldest living man following the death of Alexander Imich on 8 June 2014. Guinness World Records acknowledged him as the oldest living man on 20 August 2014. At the time of his death he was 112 years and 150 days old. Reports noted that he expressed a wish to continue living, saying he hoped to live at least two more years.

Context and verification of supercentenarians

People aged 110 years or older are classified as supercentenarians. Verification of such longevity claims relies on historical documents—birth records, family registers, and other contemporaneous paperwork—together with modern cross-checking. Organizations that track extreme age, along with reference works such as Guinness World Records, publish carefully vetted lists; media reports about Momoi drew on those verification practices.

Legacy and notable facts

• Educator: Taught chemistry and led two prefectural high schools in Fukushima and Saitama prefectures.
• Supercentenarian: Recognized internationally for his age and briefly held the title of world's oldest living man.
• Longevity milestone: Lived to 112 years, dying on 5 July 2015 of kidney failure, and was succeeded in the title of oldest living man by Yasutaro Koide.

Momoi's life is often cited in discussions about longevity, the lives of professional educators, and Japan's rapidly aging population. His combination of a long public-service career and verified advanced age made him a subject of interest for both national media and organizations that document extreme human longevity.

Further reading and sources

For contemporary notices and record confirmations see official entries and news items recorded by age-verification authorities and reference publications. Examples of sources that reported on or listed Momoi include records and articles referenced here: record 1, record 2, record 3, record 4 and record 5.

The study of supercentenarians emphasizes careful documentation and cautious interpretation of causes for longevity; while lifestyle and genetics are often discussed, definitive single causes are rarely established. Momoi remains a representative figure among verified supercentenarians of the 20th and early 21st centuries.