answers: Sultan Kösen
context: John F. Carroll John F. Carroll (1932–1969) is one of 17 known people in medical history to have reached a height of or more. He suffered from severe, 2-dimensional spinal curvature (Kyphoscoliosis) and acromegalic gigantism. He had a standing height of 244 centimeters (8 feet 0 inches) on October 14,1959 at age 27 but his height would have been 264 centimeters (8 feet 7¾ inches), assuming normal curvature of the spine. He was later measured at 239 centimeters (7 feet 10½inches) in 1968, having shrunk in stature due to his worsening spinal condition. Shortly before Carroll's death in 1969 his </s> Bao Xishun Xishun Bao (also known as Xi Shun; born 2 November 1951) is a herdsman from Chifeng, Inner Mongolia, China, recognized by "Guinness World Records" as one of the world's tallest living men. He was formerly certified as the tallest living man by the Guinness World Records. However, on September 17, 2009, Sultan Kösen overtook Bao Xishun as the tallest living man. Xishun Bao claims to have been of normal height until he was sixteen years old. He served in the People's Liberation Army for three years. He later returned to Inner Mongolia to live with his mother and </s> Franz Winkelmeier Franz Winkelmeier (27 April 1860 – 24 August 1887) was, at (some sources stating around 2.34m though), the tallest human during his time and one of the tallest humans in history. He was known as the Giant (German: Riese) of Friedburg-Lengau. He was born as a son of a mercenary family in Lengau, Upper Austria. Two years later, his parents bought the Schöscharngut between Friedburg and Lengau. In Friedburg, Franz Winkelmeier attended elementary school. Until the age of fourteen years, his growth was normal. Franz Winkelmeier made his first public appearance as an anomaly on 6 October 1881
question: who is the tallest human being in the world