Robert Pershing Wadlow (February 22, 1918 – July 15, 1940) also known as the Alton Giant and the Giant of Illinois, was the tallest person in recorded history for whom there is irrefutable evidence. Wadlow reached 8 ft 11.1 in (2.72 m)[2][3][4] in height and weighed 439 lb (199 kg) at his death at age 22.