Flashing the world's oldest smile to the camera while taking bites of the cake offered to him on the occasion, Masazo Nonaka celebrated 112 years.
A 112-year-old man living in Japan has shared his secrets to becoming the oldest man alive.
Born on July 25, 1905, Nonaka grew up in a large family and succeeded his parents running the inn. It is also the year when the Taft-Katsura Agreement took place and months before Albert Einstein officially published his special theory of relativity.
Guinness World Records' editor-in-chief Craig Glenday said, "Nonaka's achievement is remarkable".
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It is, of course, possible that there is an older living man somewhere in the world, but his date of birth can't be confirmed due to lack of reliable records.
Born just after the turn of the century - the 20th century - Nonaka started life as a farmer, then worked as a lumberjack, then managed a hot springs spa that his family owned. "He loves eating any kinds of candies ― Japanese or Western style", she said, according to The Telegraph.
His granddaughter told Agence France-Presse (AFP) that, although he uses a wheelchair to move around, his general condition is good. "He reads newspapers every day and often soaks in the hot springs".
Japan has around 68,000 people aged 100 or older in the country, the government said a year ago.
The world's oldest person on record is Japanese woman Nabi Tajima who is 117 who replaced replacing Violet Moss-Brown of Jamaica, who died in September at age 117.