after shigechiyo izumi's age record was debunked and removed by the guinness world records in c. 2010, he considered as "the oldest validated man ever". mortensen's male human longevity record stood for close to 15 years before being surpassed in age by jiroemon kimura of japan in december 2012. due to the fact that he moved from his native denmark to the united states in his early 20s, he was the oldest known emigrant until italian-american woman dina manfredini narrowly outlived him by just 5 days in december 2012, only 2 weeks before jiroemon kimura would break his male longevity record.