The tallest person in recorded history is Robert Wadlow, who reached a height of 8 feet 11 inches (2.72 meters). Born in 1918 in Alton, Illinois, Wadlow's extraordinary height was due to an overactive pituitary gland, which caused his body to produce excessive growth hormone. He was often referred to as the "Giant of Illinois." Robert Wadlow passed away in 1940 at the age of 22. His remarkable stature made him a well-known figure, and he was often featured in various media and public events. Today, he is remembered for his unique height and the challenges he faced throughout his life.