Henry Allingham, English World War I soldier and supercentenarian (died 2009)

Henry William Allingham was an English supercentenarian. He is the longest-lived man ever recorded from the United Kingdom, a First World War veteran, and, for one month, the verified oldest living man in the world. He is also the second-oldest military veteran ever, and at the time of his death was the 12th-verified oldest man of all time.

World War I or the First World War, also known as the Great War, was a global conflict between two coalitions: the Allies and the Central Powers. Main areas of conflict included Europe and the Middle East, as well as parts of Africa and the Asia-Pacific. There were important developments in weaponry including tanks, aircraft, artillery, machine guns, and chemical weapons. One of the deadliest conflicts in history, it resulted in an estimated 30 million military casualties, plus another 8 million civilian deaths from war-related causes and genocide. The movement of large numbers of people was a major factor in the deadly Spanish flu pandemic.

A supercentenarian, sometimes hyphenated as super-centenarian, is a person who is 110 or older. This age is achieved by about one in 1,000 centenarians. Supercentenarians typically live a life free of significant age-related diseases until shortly before the maximum human lifespan is reached.

June 6 is the 157th day of the year in the Gregorian calendar; 208 days remain until the end of the year.