In 2012 who became the oldest verified male in history?

Jiroemon Kimura (April 19, 1897 – June 12, 2013) was a Japanese supercentenarian. He became the oldest verified male in history on December 28, 2012, at the age of 115 years and 253 days when he surpassed the age of Christian Mortensen who died in 1998, and also became the first and so far the only man who indisputably reached 116 years of age, being 116 years, 54 days old at the time of his death from natural causes on June 12, 2013, in a hospital in his hometown of Kyōtango, Kyoto Prefecture, Japan. He was the last known living man born in the 19th century.

Kimura became the oldest living man in Japan upon the death of Tomoji Tanabe on June 19, 2009, the world's oldest living man upon the death of Walter Breuning on April 15, 2011, the oldest living person in Japan upon the death of Chiyono Hasegawa on December 2, 2011, and the world's oldest living person upon the death of Dina Manfredini on December 17, 2012, until his own death.