1 / 3   Masazo Nonaka, born in 1905, the same year when Albert Einstein’s theory of special relativity was published, received a certificate from Guinness World Records recognizing him as the world’s oldest man on April 10. He married with his wife, Hatsuno, in 1931 and has five children, according to Guinness World Record. /VCG Photo

2 / 3   At the ceremony, his family revealed his secrets: loving sweets and hot baths. “He loves eating any kinds of sweet, both the Western and the Japanese style,” said Yuko Nonaka, his granddaughter,” he reads the newspaper everyday and often soaks in the hot springs.” /VCG Photo

3 / 3   Japan, known for the longevity of its people, the average age of 86.6 years old for women and 79.6 for men, has been home to several oldest title holders, including Jiroemon Kimura, who died in June 2013 at the age of 116. /VCG Photo