Guinness World Records, the official authority to break and record world records, has documented the identity of the world's oldest man. The Japanese, "Shitetsu Watanabe," aged 112 years and 344 days, won the world record at a ceremony held in Japan.

Guinness World Records revealed an exclusive video of the man, alongside Kaoru Ishikawa, the regional director of Guinness in Japan, during the handover ceremony. As shown in the video, a manuscript in Japanese written by Watanabe, with his hand, reads: “The world's first”.

Al-Muammar, the new record-holder, was born on March 5, 1907 in Niigata, Japan, and is one of the eight children of Haruzo Watanabe and his wife (Mia). After graduating from the Faculty of Agriculture, he moved to Taiwan to work in the sugar cane trade. During his 18-year tenure in Taiwan, he married and had four out of five children there. He also served in the army at the end of the Pacific War in 1944. He then returned to Japan's Niigata Prefecture, until retirement. Then he worked with his son in agriculture until he was 104 years old.

Chitetsu explained the secret about his permanent health by saying: "Never get angry and always have a smile on your face." The oldest person in the world practices many activities, the most important of which is the art of cutting and shaping paper (origami), calligraphy and mathematics.

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